Men’s ARK Utö™ AIR
Brand new for 2022
UTÖ™ AIR was developed before the 2021 ÖTILLÖ Swimrun World Champions where our team used the prototype and set a new World Record.
UTÖ™ AIR has the same base as UTÖ but with sleeveless construction. It makes it slightly lighter with zero restriction in the shoulder area.
A pioneering suit designed to keep the lowest weight possible and provide the highest comfort with unrestricted running properties.
- Premium Yamamoto LIMESTONE neoprene
- Shaping power fabric, water-repellent coating
- Remarkably low weight
- Anti-leak construction – complete, including arm opening
- Running++
- UltraFlex inner liners
- Master buoyancy belt – FOAM+
- Glide skin coating
- Smooth neck/collar with pressed edge
- Back pocket with flap closure
- Inner mesh pockets
Weight: 450 g (men’s size M)
World’s most innovative
swimrun suit
The name Utö honors the island Utö in the Stockholm archipelago. If there is a Mecca of swimrun, Utö is the spot. This is the last island and also the finish of ÖTILLÖ Swimrun World Championships, a vision, and a dream for many swimrun athletes.
“Lightest weight”
450 g
Low weight is a key in swimrun and our main topic when it comes to product development. With its 450 g (men’s M), UTÖ™ AIR is the lightest suit of its kind.
Unique material combination
UTÖ™ AIR is made of a unique material combination that makes the suit extremely lightweight and optimized for the next level of swimrun performance.
Yamamoto LIMESTONE neoprene
The upper part is made of the most flexible glide skin neoprene from Yamamoto. The neoprene gives you thermal protection and reduces drag.
Buoyancy foam
A new buoyancy FOAM panel increases the floatation compared to neoprene. The result is a lighter but also more buoyant suit.
Woven stretch fabric
Leg parts are made of premium woven stretch-fabric. This is one of the fastest and most innovative fabrics available. The fabric is extremely lightweight with the lowest water absorption. Treated with long-lasting water repellent coating which reduces drag significantly.
Running++
We know that the running has a big impact in swimrun. UTÖ™ AIR is designed with optimal running properties. The hi-end fabric in leg part allows you to run with zero restrictions.







Size guide
Weight Height | 60 kg | 65 kg | 70 kg | 75 kg | 78 kg | 81 kg | 84 kg | 87 kg | 90 kg | 95 kg | 100+ kg |
---|---|---|---|---|---|---|---|---|---|---|---|
160 cm | XS | XS | XS | XS | S | S | S | S | M | M | L |
165 cm | XS | XS | XS | S | S | S | S | M | M | M | L |
170 cm | XS | S | S | S | S | S | S | M | M | L | L |
175 cm | S | S | S | S | S | S | M | M | M | L | L |
178 cm | S | S | S | S | S | S | M | M | M | L | L |
181 cm | ST | ST | ST | ST | ST | M | M | M | L | L | L |
184 cm | ST | ST | ST | ST | ST | MT | MT | MT | L | XL | XL |
187 cm | ST | MT | MT | MT | MT | MT | MT | L | L | XL | XL |
190 cm | MT | MT | MT | MT | MT | MT | MT | L | L | XL | XL |
193 cm | MT | MT | MT | MT | MT | MT | L | L | XL | XL | XL |
196+ cm | MT | MT | MT | MT | MT | MT | XL | XL | XL | XL | XL |
ST = Small/Tall
MT = Medium/Tall
Please note:
The size chart is just a guide. Since the fit is most individual you should try the suit. Our suits are flexible, if you are between two sizes we recommend you to take the smaller size.