Collection: Sea bags for Open Water

When you move away from the pool and into open water, it is crucial to have the right equipment. Here, the duffel bag is one of the most important tools, both for your safety, visibility and storage. At Transition Zone, we sell duffel bags from ZONE3, which are known for their well-thought-out design and high quality - developed specifically for open water swimmers and triathletes.

Whether you're training for an Ironman, competing in an open water event, or just enjoying a long swim in a lake, ocean, or fjord, a ZONE3 bag gives you peace of mind and the freedom to focus on your swim. It keeps you visible, can carry your belongings – and in case of an emergency, gives you something to hold on to.

A tow float (also called a swim buoy or tow float) is an inflatable, waterproof bag that you attach around your waist with an adjustable waist strap. It floats behind you without affecting your swimming and has three important functions:

Visibility: With its bright neon colors (typically orange, pink or yellow), the monkfish makes you visible to boaters, kayakers and other swimmers - even from a long distance and in waves.

Safety: If you need a break, cramp up, or feel uncomfortable, you can lean on the bag and take a breather.

Storage: Many models from ZONE3 have a waterproof compartment where you can store your mobile phone, keys, energy gel, clothes or shoes while swimming.

This means you can go on longer trips without having to leave your belongings on land – and without compromising on safety.

ZONE3 is one of the most recognized brands in the triathlon world, and their swim bags are designed with the swimmer's needs in mind. You don't just get a buoyancy bag, but a versatile and well-tested tool that matches your training needs.

The ZONE3 Dry Bag Tow Float is one of the most popular models. It combines high visibility with practical storage - ideal for longer open water sessions. The inflatable part consists of two air chambers, which makes it extra stable in the water, and the inner compartment is 100% waterproof. Here you can store your change of clothes, your phone (possibly in an extra bag), car keys or snacks.

Another favorite is the ZONE3 Hydration Swim Buoy, which has a special feature: It features an external pocket for a water bottle, so you can stay hydrated during longer swims – perfect for hot summer days when you’re in the water for long periods. It offers the same visibility and safety as the standard model, but gives you even more functionality.

Both models are lightweight, easy to pack and quick to inflate – and come with adjustable straps to fit most people. They glide effortlessly through the water and are tested not to affect swimming technique.

Open water swimming is freedom, nature and performance – but it requires thought and the right equipment. With a ZONE3 bag you are not only better visible and protected from accidents – you also get the freedom to take your things with you on trips and make your training more flexible.

At Transition Zone, we have selected the best models from ZONE3 that combine function, durability and safety in one. We are happy to help you find the bag that suits your needs and level – whether you swim along the coast, in a fjord or participate in open water races.

Make your open water training safe and effective – shop your ZONE3 bag with us today.