THE #1 BEST-SELLING SLEEVELESS WETSUIT The Vortex Sleeveless redefines XTERRA WETSUITS' most popular sleeveless wetsuit. It's the #1 best-selling sleeveless wetsuit in North America for over ten years and has been a Go-To for swimmers of all levels. Ideal for athletes who want an all-around wetsuit to use while training and racing, the new Vortex Sleeveless continues to offer the perfect combination of performance, buoyancy, comfort and flexibility. The interior is lined with X-FLEX LINER 2.0, for maximum flexibility and smoother transitions, and its upgraded neoprene provides greater overall buoyancy. The Sleeveless design provides natural range of motion while racing and training, providing athletes the best output per stroke. The front of the Vortex Sleeveless is 5 mm, which is the maximum legal thickness and provides the maximum buoyancy during your swim. The back is 3 mm, for flexibility throughout each stroke. The Vortex Sleeveless continues to be updated, with strategically placed panels to get you in an optimal body position. If you are looking for speed and durability in a sleeveless wetsuit, the all-new Vortex Sleeveless is the right wetsuit for you.