RESTUBE for ice swimming

Plunge into the icy water and feel the refreshing thrill! Enjoy the confidence in extreme conditions – no matter if you're gliding through the freezing water or pushing yourself to the limit. RESTUBE keeps you safe.

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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 ice swimming and many other water activities

99,95 €

4.6

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

Accessories, Bundles & More for your Freedom

WATERPROOF SMARTPHONE CASE

Protective case for cell phones, 100% waterproof

24,99 €

WATERPROOF LED SAFETY LIGHT

9,99 €

Zwei Restube CO2 Ersatzpatronen 16 Gramm

From 9,99 €

19,95 €

4,99 €

Waterproof drybag with shoulder strap

From 14,99 €

Gear up with add-ons

60+

lives safed

2197+

five star reviews

500.000+

happy customers

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

The SWIM BUOY is a must-have for my open water swimming. It has often made me visible in the lake and takes my car keys and mobile phone with me on trips. The quality is so good and the buoy is so resilient that I use a second one as a backpack. I find this buoy ingenious, well thought-out and helpful.

Stephan

At Sundschwimmen, I had to stop my swim after swallowing several times. Thanks to the mandatory use of ACTIVE, I was able to release it and wait relaxed for the rescue team. I bought two Safety Buoys for my free swim straight afterwards.

Egon

TOP! I would recommend it to anyone who swims alone in the lake or sea. My constant companion! It can save lives!

Isabela

One Gear, Many Missions – RESTUBE Has Your Back

An unmatched sense of safety

The health benefits of ice swimming are undeniable, but the risks should not be underestimated. Want to enjoy the cold with peace of mind? With RESTUBE, you always have extra buoyancy and a sense of safety.

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You set the challenge, we´ve got your back

We’ve designed the Safety Buoy so you can always take it with you while ice swimming – whether you’re aiming for a quick dip in a frozen lake or testing your limits with a challenging swim. Compact and ready, it’s there to support you in unexpected situations.

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Prepared for any situation

With the RESTUBE Safety Buoy, you can fully focus on your cold water adventure, without fear of unexpected situations. The lightweight buoy quickly provides additional buoyancy in case of an emergency, keeping you above the water.

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Blog post about ice swimming and the health benefits

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 ice swimming without being restricted in your range of motion.

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For different activities

With the RESTUBE Safety Buoy, you are well protected during any ice swim – whether in a frozen lake, an icy river, or swimming in the cold sea. It stays by your side and ensures you always feel safe.

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Be prepared to help others in need

During your ice 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 Ice swimming Gets Critical

When ice 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!

Others in need?

Pass on the buoy!

Got a cramp?

Take a break, relax over the buoy!

Circulatory problems?

Pull the trigger for buoyancy, stay calm!

Experience matters – Athletes trust RESTUBE

Josef Köberl | Ice Swimmer & world record holder

"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."

Dennis Stemme | Ice Swimmer & Year-round swimmer

"I enjoy swimming in cold and icy water. In these extreme conditions, I need to be able to take a break from time to time to get my bearings or simply to regulate my breathing. That's why the RESTUBE Safety Buoy accompanies me on my way through the frosty waves."

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.”

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 & Ice swimming

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 on ice?

A cramp, a current, a sudden loss of strength. Problematic situations in the water are varied and often come as a complete surprise. One thing you can plan for, however, is to carry additional buoyancy for greater safety when ice swimming.

Additional buoyancy can often alleviate an unpleasant situation in the water immediately, and knowing that you have buoyancy with you just in case will allow 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.

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

How many times can a CO2 cartridge be used?

A CO2 cartridge can be used to trigger the Safety Buoy once. Afterwards, the empty CO2 cartridge must be removed, and a new original RESTUBE CO2 cartridge must be inserted.

This is simple, and only takes a few steps. You can view an instruction video here: https://restube.com/blogs/news/how-to-pack-restube-care-and-maintain-correctly

You can also blow up the Safety Buoy manually using the mouth valve. This is a practical option if you are using the Safety Buoy as a swim buoy, or for snorkeling.

You can purchase a 2-pack of original RESTUBE CO2 cartridges from our shop!
10.9 g CO2 CARTRIDGE for BEACH: https://restube.com/collections/cartridges/products/restube-beach-spare-cartridge
16g CO2 CARTRIDGE: https://restube.com/collections/cartridges/products/restube-spare-cartridges

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.