RESTUBE for triathlon

Push your limits and embrace the challenge of triathlon! Feel true freedom in the water – whether in training or competition, with RESTUBE you can fully concentrate on your performance.

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Bestseller

PVC-Free

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Nathalie Pohl and over 500.000+ other people already trust RESTUBE

ACTIVE

Perfect for triathlon and many other water activities

99,95 €

4.7

incl. VAT

75 N buoyancy, deployable in seconds

Designed for versatile and sporty activities in and on the water
With the innovative RESTUBE Safety System (RSS)
For your safety and peak performance on the water
Your companion for many years: lightweight, robust and reusable

Perfect for the following water activities:

Color: Icemint

Description

Whether you're paddling across the lake at a leisurely pace or pushing yourself to the limit, your focus is entirely on your activity. Feel the freedom! ACTIVE is your peace of mind.

ACTIVE comes with all the standard RESTUBE Safety System features:
1. versatile use
2. small, durable and always at hand
3. also inflates with the mouth valve
4. reusable
5. release mechanism

Bringing you many other benefits and features too:

ACTIVE comes with an integrated whistle for acoustic signals
ACTIVE can be attached to the harness either vertically or horizontally
ACTIVE has a positioning bar to prevent the bag from slipping - swimmers often prefer the vertical attachment at the centre of the back
A small integrated compartment in the bag provides storage for small items
ACTIVE is compatible with all RESTUBE READY products

PVC-Free

Dry bag

SWIM BUOY

39,95 €

4.8

incl. VAT

Perfect for open water swimming, snorkeling, ice swimming, and triathlon

For everyone who wants to move freely in the water – without any risk
The RESTUBE SWIM BUOY is your reliable companion for swimming, open water training, triathlon, or ice swimming
Provides extra visibility, buoyancy in emergencies, and storage space for your essentials
Ultralight, inflatable, and reusable – exactly what you need to focus on what matters most: your experience in the water

Perfect for the following water activities:

Buoy: SWIM BUOY PRO

SWIM BUOY PRO SWIM BUOY CLASSIC

Description

Ready to Dive into your next adventure?

Whether it’s a lap around the lake, training for your next triathlon, or a long swim in the open sea – with the inflatable SWIM BUOY, you’re visible, protected, and free to explore.

✔ More safety through visibility
✔ Instant buoyancy
✔ Full freedom of movement in the water

Why Choose RESTUBE SWIM BUOY?

The SWIM BUOY PRO offers more than just buoyancy:
✔ Integrated drybag – For phone, keys & more.
✔ Compact & lightweight – Only 210 g, barely noticeable.
✔ Smart add-ons available:

READY CAM CONNECTOR
WATERPROOF SMARTPHONE CASE
BACKPACK STRAPS
WATERPROOF LED SAFETY LIGHT
EMERGENCY WHISTLE
And much more!

Accessories, Bundles & More for your Freedom

Zwei Restube CO2 Ersatzpatronen 16 Gramm

CO₂ CARTRIDGES (16g)

From 9,99 €

DRYBAG

Waterproof drybag with shoulder strap

From 14,99 €

BuddySwim SWIM GOGGLES OZEANX

For the clearest view and an unmatched swimming experience

48,90 €

SWIMMING CAP

8,99 €

WATERPROOF LED SAFETY LIGHT

9,99 €

WATERPROOF SMARTPHONE CASE

Protective case for cell phones, 100% waterproof

24,99 €

Gear up with add-ons

60+

lives safed

2197+

five star reviews

500.000+

happy customers

For me, swimming in open water means freedom without limits. RESTUBE allows me to swim further and longer.

Loic Branda Olympic swimmer

When I was stung by a jellyfish in the open sea, I knew I needed help as soon as possible. I used the safety buoy to attract attention and luckily a fishing boat spotted me straight away.

Pia

I can swim well, but as I'm epileptic, it's important for me to have a solution in case of an emergency. That's why I always have the RESTUBE safety buoy with me in the water!

Linda

I have been using the RESTUBE Safety System for training in long-distance swimming and ice swimming since 2014. The safety buoy gives me confidence and signals to people at the shore and in the boats that I know what I am doing.

Josef Köberl Ice Swimmer

One Gear, Many Missions – RESTUBE Has Your Back

Safety that lets you swim faster

Maximum focus, maximum speed. Want to give your full attention to swimming? We make it possible! With RESTUBE, you enjoy extra safety and buoyancy — so you can stay focused and chase your personal best.

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You set the goal, we’ve got your back

Flexibility is everything. More distance today, more speed tomorrow – sometimes with a training partner, sometimes solo. That's exactly why we developed our safety buoy and Swim Buoy. It's always by your side, compactly stored and ready when you need it.

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Prepared for any situation

With the RESTUBE products, you can enjoy every stroke without worrying about unexpected situations. Use the compact and lightweight Safety Buoy, which quickly provides extra buoyancy in emergencies, or tow the Swim Buoy behind you, allowing you to take a break whenever needed.

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Schwimmer rennt mit verpackter Restube Boje am Rücken durchs Wasser.

Safety without compromises

With the RESTUBE Safety Buoy, you experience maximum comfort. It is small and light-weight packed in its bag and can be secured to your back. This allows you to focus entirely on swimming without being restricted in your range of motion.

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For training and competition

Both the Safety Buoy and Swim Buoy will keep you safe on any swimming course. Whether you're training to beat your own personal best time or competing in a race. Our Safety Buoy and Swim Buoy ensures that you always feel safe.

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Be prepared to help others in need

During your swimming session, it can always happen that others get into dangerous emergency situations. With RESTUBE, you can help other swimmers and water sports enthusiasts in critical moments from a safe distance

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RESTUBE When Triathlon Gets Critical

When open water swimming, our safety buoy allows you to act quickly and don't panic. Effective help for you, your family and your friends!

Fading power?

Pull the trigger for buoyancy!

Far from shore?

Draw attention with the buoy!

Got a cramp?

Take a break, relax over the buoy!

Boats and other people in the water?

Stay visible with the buoy, avoid collisions!

Experience matters – Athletes trust RESTUBE

Nathalie Pohl | Extreme swimmer & Ocean's Seven finisher

“Despite the escort boat, you swim out there alone. RESTUBE Safety Buoy helps me keep my focus while swimming. The super small Safety System has no flow resistance and is weightless in the water. A pull on the trigger inflates the yellow Safety Buoy in seconds, which gives me an even better feeling.”

Holger Lüning | Sports scientist and swimming coach

"There are just so many factors in open water that you can't possibly anticipate every possibility. One of the reasons I still feel safe is because of my constant companion, RESTUBE."

Matheus Kozlowski | Triathlete

"Safety is important to me! During my training I rely on a small but vital product from RESTUBE in case of an emergency. I don't go into the water without my pocket-sized Safety Buoy! We wear helmets on the bike, don't we?"

RESTUBE Safety Buoy

Your Freedom in the Water Starts with Safety

The RESTUBE Safety Buoy inflates in seconds with a quick pull or a few breaths through its built-in valve, while the Swim Buoy is filled by hand before you set off—no CO₂ cartridge required. Trusted, repeatedly tested, and intuitive to use, this German-engineered system unites innovation, quality, and sustainability. Our vision is simple: everyone should feel free and secure in the water. RESTUBE delivers safety that empowers.

FAQ about RESTUBE Buoys & Triathlon

Check out the most common questions our customers asked. Still have questions? Contact our customer support.

Our customer support team is available for your questions.

All FAQs

Why do I need additional buoyancy when swimming?

A cramp, a current, a sudden loss of strength. Problematic situations in the water are varied and often come as a complete surprise. However, it is possible to plan by carrying additional buoyancy for greater swimming safety.

Additional buoyancy can often immediately relieve an unpleasant situation in the water and knowing that you have buoyancy with you just in case allows you to enjoy swimming much more freely and relaxed.

Also remember that other people in the water may need help. By giving them a buoyancy aid from a safe distance, you can help them effectively without putting yourself in danger.

Who is ACTIVE for?

ACTIVE is versatile and suitable for a wide range of activities on and in the water - both training and competition.

Use ACTIVE for swimming, stand-up paddling, fishing, boating, triathlon, kayaking and canoeing.

How does the swim buoy work?

The SWIM BUOY is very easy to use and quick to attach!

Simply fasten the belt around your waist, inflate the air chamber using the mouth valve and pull the buoy behind you as you swim.

The buoy has almost no drag in the water.

When using the SWIM BUOY PRO, you can also store useful items such as an energy bar or your keys in an area separate from the air chamber so they are always at hand.

Can I use the RESTUBE Safety Buoy more than once?

Yes, after replacing the CO2 CARTRIDGE, the Safety Buoy is immediately ready for use again. The sales package contains the safety buoy incl. an original RESTUBE CO2 CARTRIDGE that must be screwed in before use. After use, the safety buoy is very easy to prepare for use again: Deflate, insert a new cartridge, fold the buoyancy chamber according to the printed instructions, and stow the whole thing in the pouch! ATTENTION: Only original RESTUBE CO2 CARTRIDGES are 1.) 100% quality tested, 2.) seawater resistant, 3.) level tested and 4.) the necessary release force is matched to the release. The cartridges comply with the standard for life jackets DIN EN ISO 12402-7. If other cartridges are used, it cannot be guaranteed that the safety buoy will fill without problems in an emergency and the trigger may be damaged.

Detailed instructions for how to get the Safety Buoy ready to go again are available in our blog: https://restube.com/blogs/news/how-to-pack-restube-care-and-maintain-correctly

Where does RESTUBE produce?

RESTUBE products are mainly produced in Vietnam. The production facility fulfils strict social and environmental standards and is regularly inspected by internal RESTUBE employees as well as external audits. Find out more here.