Best Open Water Swimming Buoys: Tow Floats, Dry Bags & Safety Picks

Stay Visible, Carry Essentials and Swim Without Unnecessary Drag

The best open water swimming buoy overall is the ZONE3 28L Swim Safety Buoy and Dry Bag because it combines strong visibility with generous storage and a recycled polyester outer material. The DIPPY 28L Swim Buoy is another spacious option, while the Hikeen 20L Swim Buoy with Dry Bag adds a touchscreen-compatible phone compartment. Swimmers who only need visibility should consider the lighter New Wave Swim Bubble, and the ProCase Swim Buoy Float provides a straightforward budget alternative. The right choice depends on whether you need a simple high-visibility tow float or a larger dry-bag buoy capable of carrying clothing and other lightweight essentials.

 

Open-water swimming buoy	Best for
ZONE3 28L Swim Safety Buoy and Dry Bag	Best overall for visibility and storage
DIPPY 28L Swim Buoy	Best high-capacity option
Hikeen 20L Swim Buoy with Dry Bag	Best for accessible phone storage
New Wave Swim Bubble	Best lightweight visibility option
ProCase Swim Buoy Float	Best budget option

 

An open-water swim buoy is a brightly coloured inflatable float attached to the swimmer through an adjustable waist belt and tow line. It trails behind the body while swimming, making the person easier to see from the shore and from nearby water users. Larger models also contain roll-top storage compartments, allowing clothing and other lightweight belongings to be carried rather than left unattended beside the water.

 

A tow float is not the same as a life jacket, personal flotation device or professionally rated rescue aid. Although an inflated buoy may provide temporary support while a swimmer pauses, it should never be relied upon to prevent drowning or compensate for poor swimming ability, dangerous conditions or a lack of supervision. Open-water swimming carries genuine risks, and a bright float is only one part of a sensible safety plan.

 

We selected these options by comparing visibility, capacity, storage access, attachment design, materials and intended use. The shortlist includes large dry-bag buoys and simple visibility floats because a swimmer carrying shoes and clothing has different requirements from a triathlete who wants the lightest possible tow float. Product specifications can change between colours and versions, so confirm the selected capacity and storage design before ordering.

 

Best Overall: ZONE3 28L Swim Safety Buoy and Dry Bag

The ZONE3 28L Swim Safety Buoy and Dry Bag is the best open water swim buoy in this selection for swimmers who want high visibility and useful carrying capacity in one established design. Its 28-litre compartment provides enough room for clothing, footwear, a towel and other compressible belongings, making it particularly convenient when swimming from a beach, lake or riverside location without secure storage nearby.

 

The roll-top design allows the main compartment to be closed before inflation. This type of construction works best when the bag is not overfilled, the opening is rolled firmly several times and the fastening is secured correctly. Trapped air gives the buoy its shape and helps keep the stored equipment above the surrounding water while the swimmer moves.

 

Its outer material is made from recycled polyester, giving the ZONE3 a more considered material choice than many basic PVC bubbles. That does not remove the need for careful handling. Stones, sharp objects, rough concrete and careless storage can damage any inflatable buoy, particularly around seams and valves. Place it on a towel or smooth surface while packing rather than dragging it across the edge of a car park or rocky bank.

 

The larger shape improves surface presence and makes the buoy easier to notice than a very small float. Visibility remains dependent on colour, weather, waves and the attention of other water users, so a bright buoy does not guarantee that every boat operator or paddleboarder will see you. It should complement a high-visibility swimming cap and a carefully selected route rather than encouraging greater risk.

 

Choose the ZONE3 if you regularly carry clothing to the water, want a recognised swimming brand and prefer one buoy that can handle ordinary training sessions as well as longer outings. Swimmers who only need a visual marker may find its 28-litre body larger than necessary, but that additional capacity is precisely what makes it the strongest all-round option for visibility and storage.

 

Best High-Capacity Option: DIPPY 28L Swim Buoy

The DIPPY 28L Swim Buoy is another generously sized tow float built around a 28-litre dry-bag compartment. It is a practical choice for swimmers who arrive wearing ordinary clothing and need somewhere to place a towel, shoes and small essentials while they are in the water.

 

Large swim buoy dry bags are useful because they keep belongings close to the swimmer rather than unattended on shore. Capacity must still be used sensibly. Heavy objects can make a buoy less balanced, increase drag and place additional strain on the fastening points. Pack light, spread the contents evenly and keep hard or sharp items away from the inflatable walls.

 

The bright external colour is intended to increase visibility from a distance. A large buoy can be easier to follow during group sessions and may help someone on shore monitor general progress. It does not transmit a location or summon assistance, so tell another person where you are swimming, the route you expect to follow and when you intend to return.

 

The DIPPY is particularly useful for swimmers who move between different access points rather than returning to the place where they entered. Clothing can travel with the swimmer, removing the need to walk back in wet swimwear. It can also suit organised wild-swimming trips where equipment needs to remain together and visible.

 

Select this model when storage value matters more than achieving the smallest possible tow profile. A competitive triathlete may prefer a lighter bubble during uninterrupted race preparation, but recreational open-water swimmers will often gain more from the ability to carry their belongings securely.

 

Best for Phone Access: Hikeen 20L Swim Buoy with Dry Bag

The Hikeen 20L Swim Buoy with Dry Bag combines a medium-to-large storage compartment with a clear touchscreen-compatible phone section. That feature makes it appealing to swimmers who want to check a route, view a timer or keep a phone visible without repeatedly opening the main roll-top compartment.

 

A touchscreen panel is convenient, but it should not be mistaken for a guarantee that a phone cannot become wet. Seals can be closed incorrectly, materials can become damaged and water can enter when a compartment is opened with wet hands. Place valuable electronics in a separate waterproof pouch before inserting them into the buoy and inspect the product carefully before every swim.

 

The 20-litre capacity sits between a minimalist bubble and the two 28-litre dry bags. It offers enough room for smaller clothing and essentials without creating quite as much bulk behind the swimmer. This can be a useful compromise for regular lake sessions, coastal swimming and training where some storage is needed but footwear and a large towel may remain on shore.

 

Keeping a phone accessible can add practical reassurance, although reception may be limited and a touchscreen can be difficult to operate with wet hands. Do not treat a mobile phone as the only method of raising an alarm. Conditions, battery level and network coverage can all make it unavailable when needed most.

 

The Hikeen is the most suitable choice here when accessible phone storage is a priority. Its feature set is more elaborate than a simple swim bubble, but the correct choice still depends on whether you genuinely need the additional compartment or would be better served by a lighter, less complicated float.

 

Best Lightweight Visibility Option: New Wave Swim Bubble

The New Wave Swim Bubble is designed primarily to make a swimmer more visible without adding the size of a full dry-bag float. Its compact inflatable body trails behind the swimmer on an adjustable belt, creating a clear marker without being carried in the hands or worn across the upper body.

 

This is the strongest option for swimmers who already have secure storage on shore and do not need to take clothing into the water. Removing the dry-bag compartment reduces bulk and simplifies the design. A smaller float may also feel less noticeable during steady sessions, although every tow buoy creates some resistance and movement in waves.

 

The New Wave Swim Bubble is particularly suitable for triathlon training. It allows a swimmer to become accustomed to open-water conditions without turning every session into a luggage-carrying exercise. The belt should sit securely around the waist without restricting breathing, while the line needs enough length to keep the buoy away from the feet.

 

A lightweight swim buoy still needs to remain properly inflated. Check the valve, attachment points and outer material before entering the water. If the buoy loses pressure, becomes damaged or repeatedly catches around the legs, return to shore and correct the problem rather than continuing further into open water.

 

Choose this model when visibility is the main objective and storage is unnecessary. It offers a cleaner solution for experienced swimmers, coached sessions and triathletes who want a bright tow float without carrying several litres of spare capacity.

 

Best Budget Option: ProCase Swim Buoy Float

The ProCase Swim Buoy Float provides a straightforward and affordable way to add a bright surface marker to an open-water setup. Its adjustable waist belt and inflatable body follow the familiar tow-float format, making it suitable for recreational swimming, triathlon practice, snorkelling and other surface-water activities.

 

This is a simple visibility float rather than a large storage bag. That makes it easier to pack and less bulky than the ZONE3, DIPPY or Hikeen options, but clothing and larger personal items will need to remain elsewhere. It suits swimmers who want to try using a buoy before investing in a more substantial model.

 

Budget equipment should still be inspected carefully. Inflate the float before travelling, check that it holds pressure and examine the belt, clip and tow line for damage. Testing it in shallow, supervised water allows the length and waist fit to be adjusted before moving onto a longer route.

 

The ProCase makes the strongest case for occasional use, shorter training sessions and swimmers who require visibility without storage. Regular swimmers may eventually appreciate the material refinement or capacity of a premium buoy, but the simpler design covers the core function without unnecessary complication.

 

What Is a Tow Float?

A tow float is an inflatable open-water swimming accessory connected to the waist by a belt and flexible line. It floats on the surface behind the swimmer, where its bright colour creates a larger visual marker than a swimming cap alone. Depending on the design, it may be called a swim buoy, swim bubble, safety buoy or open-water tow buoy.

 

The word “tow” can make the product sound like a device that pulls or supports the swimmer, but the swimmer actually tows the float. A correctly adjusted buoy should follow without interfering significantly with the stroke. It is not designed to propel someone through the water or make an unsafe swimmer capable of completing an open-water route.

 

Some models are hollow inflatable bubbles with no meaningful storage. Others combine an air chamber with a roll-top dry-bag compartment. A dry-bag version is larger but can carry compressible belongings, while a simple bubble is lighter and better suited to swimmers who only want visibility.

 

Tow floats should not be confused with pool pull buoys. A pull buoy is held between the thighs during technique training to support the legs and isolate the upper body. It is not intended to trail behind someone outdoors, provide storage or increase visibility. Searching for a swimming buoy can produce both products, so check the intended use carefully.

 

How to Choose an Open-Water Swim Buoy

Start by deciding whether storage is genuinely required. If a secure locker, vehicle or trusted person is available beside the water, a lightweight visibility float may be all you need. If clothing must travel with you or the swim finishes at a different location, a larger dry-bag buoy becomes considerably more useful.

 

Colour is important because visibility is the main purpose of the product. Bright orange, pink and fluorescent yellow or green stand out more readily than dark colours in many conditions. The best colour can change with water, weather and background, so do not assume one shade is equally visible everywhere. A contrasting swimming cap adds another visual marker.

 

Check the waist-belt adjustment range rather than assuming one size fits every swimmer comfortably. The belt needs to remain secure over a wetsuit or swimsuit without becoming restrictive. A clip should fasten positively, and the loose strap end should not trail far enough to become distracting.

 

Tow-line length affects how the buoy behaves. A line that is too short can bring the float against the hips or legs, while excessive length allows it to move widely and catch more easily around other swimmers. Adjust the connection on shore, then test it in shallow water before beginning a longer session.

 

Material quality matters because the buoy will be exposed to sunlight, salt, wet equipment and rough ground. Heavier material may resist abrasion better but adds weight when packed. Lightweight construction is easier to transport, although it deserves more careful handling around rocks, branches and sharp equipment.

 

Inspect how the storage compartment is separated from the inflatable sections. Some buoys use the air trapped inside the rolled bag to create flotation, while others include separate chambers. Follow the supplied inflation and closure instructions because the wrong packing sequence can reduce stability or allow water to reach the contents.

 

What Size Swim Buoy Do You Need?

A small swim bubble is appropriate when the only objective is making the swimmer easier to see. It packs down neatly, creates less bulk and suits triathlon practice or short training sessions. With no meaningful storage, it also discourages carrying unnecessary weight.

 

A capacity of around 15 to 20 litres provides room for a phone, keys and some lightweight clothing, depending on the specific construction. This is a practical middle ground for swimmers who want storage without towing the largest available buoy. The Hikeen 20L falls into this category.

 

A 28-litre buoy gives more room for clothing, shoes and a towel. It suits point-to-point swimming and locations without secure facilities. The listed capacity describes the theoretical compartment volume, not necessarily the amount that should be packed. The bag still needs sufficient air and space for the roll-top closure to work correctly.

 

More capacity is not always better. Heavy contents create drag and may cause the buoy to sit awkwardly. Water weighs approximately one kilogram per litre, so even a small leak or waterlogged item can change how the float behaves. Carry only what is genuinely required and keep the load balanced.

 

Using a Swim Buoy Without Disrupting Your Stroke

Fasten the belt around the waist rather than the chest or neck. It should remain secure while allowing normal rotation and breathing. Position the connection towards the back so the line trails cleanly behind the body. If the clip repeatedly moves around the waist, stop and adjust it.

 

Enter the water gradually and observe how the buoy responds before swimming away from shore. Check that it remains inflated, the line stays clear of the legs and the belt does not loosen over a wetsuit. A few strokes in shallow water can reveal an adjustment problem that would become much more inconvenient farther out.

 

During the swim, the float should remain behind or slightly to one side rather than knocking against the feet. Waves and wind can move it differently from calm water, so expect occasional contact. If it begins pulling strongly or wrapping around the body, return to a stable position and deal with the line rather than attempting to fight through it.

 

Group swimmers should leave enough room between one another to prevent tow lines from crossing. A buoy makes each person easier to follow, but several floats can create clutter during a tightly packed start. Triathletes should practise with the buoy during ordinary training rather than using it for the first time in a crowded session.

 

Storage, Phones and Keeping Equipment Dry

A swim buoy with storage is convenient, but no valuable item should be placed inside without additional protection. Roll-top closures depend on correct packing and can be compromised by sand, folds, damage or insufficient rolling. Use an independent waterproof pouch for a phone, keys, identification and electronic car key.

 

Remove unnecessary air from clothing before packing but leave enough internal air for the buoy to float as designed. Fold soft items so they sit evenly rather than creating one heavy end. Keep footwear away from delicate material and place keys inside a protective pouch to prevent them puncturing the inner surface.

 

A phone window allows the screen to remain visible, but using navigation or making a call in open water may still be difficult. Wet hands, bright reflections, cold fingers and waves can all make the device harder to operate. Prepare the route in advance and do not depend on a phone as a substitute for local knowledge or appropriate supervision.

 

After swimming, open the compartment away from the water and dry your hands before removing electronics. Wipe the buoy clean, empty every section and allow it to dry completely before storage. Packing an inflatable product while wet can encourage unpleasant smells and deterioration around seams.

 

Open-Water Swimming Safety Matters More Than the Buoy

A brightly coloured float can make a swimmer easier to see, but it cannot make an unsuitable location safe. Check the weather, tide, current, water quality, access points and local restrictions before entering. Coastal conditions can change quickly, while lakes and rivers may contain cold areas, submerged obstacles, boat traffic and unexpected currents.

 

Swim with another capable person or as part of an organised group whenever possible. Tell someone on shore where you are going and when you expect to return. Select a route that matches your current ability rather than the distance you hope to achieve eventually.

 

Cold water can affect breathing, coordination and judgement. Enter gradually, remain close to an accessible exit and do not interpret a wetsuit or buoy as permission to stay in beyond your limits. Anyone beginning outdoors can use the FITTUX guide on how to start wild swimming and its swimming calculator to put distance and conditions into better context.

 

Tides deserve particular attention at coastal locations. The time shown on a watch is only one part of understanding the water around you. The best tide watches can make tidal information more accessible, but local forecasts, warnings and knowledge remain essential.

 

More technical diving equipment should not be treated as interchangeable with open-water swimming equipment. A swimmer looking at depth, dive time and ascent information has moved into a different category of activity. FITTUX’s guide to the best dive computers and dive watches explains the equipment intended for that environment.

 

Building a Practical Open-Water Setup

A buoy is only one part of a comfortable setup. A well-fitted wetsuit can provide thermal protection and additional buoyancy, while a bright swimming cap makes the head easier to identify. Appropriate goggles should remain comfortable for the expected duration and offer a lens tint suited to the light conditions.

 

Swimmers exploring coastal scenery may also be interested in the best underwater scooters, although powered underwater equipment requires a different level of control and should not be used as a replacement for swimming ability. A tow float should never be attached in a way that could become entangled with powered equipment.

 

Those who want to record an outdoor session can compare the best 360 cameras for outdoor adventures. Any camera mount must remain secure without restricting movement or creating an entanglement risk. Recording the swim should always remain secondary to watching the conditions and maintaining a safe route.

 

Open-water swimming can place unfamiliar demand on the shoulders, neck and upper back, particularly when someone increases distance too quickly. Gradual progression and appropriate recovery matter more than attempting to solve every ache with equipment. For ordinary post-training muscle work, the best massage guns guide compares different options, but persistent or sharp pain requires proper assessment rather than repeated self-treatment.

 

Looking After an Inflatable Swim Buoy

Rinse the buoy with clean fresh water after swimming in the sea. Salt crystals can accumulate around valves, clips, seams and roll-top sections. A quick rinse followed by thorough drying is easier than dealing with stiff fastenings and residue later.

 

Allow the buoy to dry with the storage compartment open and the valve positioned according to the care instructions. Do not leave it tightly rolled while damp. Store it away from prolonged sunlight, extreme heat and sharp equipment that could press against the surface.

 

Check the belt and tow line periodically rather than examining only the inflatable body. UV exposure, salt and repeated adjustment can weaken straps and clips. Replace a damaged component before the next swim rather than assuming it will survive one more outing.

 

Inflate the buoy at home occasionally to confirm that it continues to hold pressure. A slow leak may be difficult to notice when the product is packed away but obvious after several hours. Follow the manufacturer’s repair guidance and do not use an improvised repair that could fail unexpectedly in the water.

 

Questions to Answer Before Entering the Water

What is the best open water swimming buoy?

The ZONE3 28L Swim Safety Buoy and Dry Bag is the best overall option in this comparison because it combines a highly visible exterior, generous storage and a recycled polyester outer material. Swimmers who do not require storage may prefer the smaller New Wave Swim Bubble.

 

What size swim buoy do I need?

Choose a simple bubble when you only need visibility, approximately 15 to 20 litres for small essentials and around 28 litres when carrying clothing, shoes and a towel. Do not fill a large buoy with heavy equipment simply because the space is available.

 

Will a tow float slow me down?

Every tow float creates some resistance, although a well-adjusted lightweight bubble should cause relatively little disruption during ordinary training. Larger dry-bag buoys create more drag, particularly when overloaded or used in wind and waves.

 

Can a swim buoy save someone from drowning?

A standard swim buoy is not a life jacket, certified personal flotation device or rescue product. It may offer temporary support when inflated, but swimmers must never depend on it to prevent drowning. Choose appropriate conditions, swim within your ability and use recognised safety equipment where required.

 

Can I put my phone inside a swim buoy?

Yes, if the selected model includes suitable storage, but place the phone inside a separate waterproof pouch as additional protection. Check every closure before entering and do not assume that a touchscreen panel guarantees the phone will remain dry.

 

Is a swim buoy suitable for triathlon training?

A lightweight tow float can work well for open-water triathlon training because it improves visibility without requiring the swimmer to hold anything. Check the event rules before race day because tow floats are training and safety accessories rather than standard competition equipment.

 

What is the difference between a swim buoy and a pull buoy?

An open-water swim buoy trails behind the swimmer to improve visibility and sometimes provide storage. A pool pull buoy is held between the thighs to support the legs during technique drills. They are completely different products despite the similar terminology.

 

Can I use a swim buoy in the sea?

Many tow floats are suitable for sea swimming, but the product cannot protect against tides, currents, waves, cold water or boat traffic. Check local conditions, swim with others and rinse the buoy with fresh water afterwards.

 

What is the best colour for a swim buoy?

Bright orange, fluorescent yellow, green and pink are commonly used because they contrast strongly with many water conditions. Visibility changes with weather, waves and background, so combine the buoy with a bright swimming cap and do not assume colour guarantees you will be seen.

 

How should a swim buoy belt fit?

The belt should sit securely around the waist without restricting breathing or body rotation. Test it over the wetsuit or swimwear you intend to use and adjust the tow line so the buoy remains clear of the legs.

 

Take Visibility Seriously Without Mistaking It for Protection

Choose the ZONE3 28L Swim Safety Buoy and Dry Bag when you want the strongest balance of visibility, storage and material quality. The DIPPY 28L offers another spacious solution, while the Hikeen 20L is better suited to swimmers prioritising accessible phone storage. The New Wave Swim Bubble keeps the setup lighter for triathlon practice, and the ProCase provides a simple entry-level alternative.

 

The most useful buoy is the one that matches the way you actually swim. Carrying clothing demands a different design from completing a short coached session, and the largest model is unnecessary when you only need a visual marker. Fit the belt properly, keep the load light and test the complete setup close to shore before relying on it farther out.

 

Above all, treat the buoy as an aid to visibility rather than permission to take greater risks. Good judgement, suitable conditions, capable companions and a realistic route will always matter more than the equipment trailing behind you.

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