The unmatched speed and support of the world’s fastest wetsuit—with zero restriction on shoulders, with enhanced warmth and ultimate comfort in cold water. 5-10 degrees warmer than you might feel in a regular wetsuit. Your core will feel locked in and streamlined, your shoulders and chest will feel completely free, your hip rotation snappy, your neck comfy and sealed, and all of your effort streamlined into pure speed forward propulsion.

1. Athletes who chill easily in open water swims.
2. Athletes who train and race in colder conditions.
3. Athletes who want ultimate warmth, speed, and comfort.
4. Athletes who want to extend their open-water swim season into the fall and winter—or OWS year round. Never miss a swim.

The X.3 Thermal features all the cutting-edge tech of its namesake—and a few key cold-busting features.

1. Patented ARMS-UP™ Construction—We threw out convention to completely eliminate restriction and fatigue in the shoulders from full-sleeve wetsuits. Nothing else comes close.
2. Patented RSX™ Buoyancy—optimized freestyle mechanics and body position with Max buoyancy down the centerline of your body + reduced buoyancy down the sides. This means your wetsuit doesn’t resist natural body rotation, leading to snappier hips, enhanced power transfer and distance per stroke.
3. Premium Zirconium Lining and ROKA Liner Layup—Many suits cut costs on interior liners and neoprene laups, and these liners often restrict stretch more than the neoprene itself. We go all in on our layups with multiple unique compositions and orientations, optimizing skin feel and two-way stretch for flexibility or support according to purpose. Our high-performance zirconium lining helps hold in heat without compromising comfort–and speed. 
4. Highest Quality Materials—ultra-flexible Yamamoto® neoprene with hydrophobic SCS nanocoating and ROKA’s own liner layup promotes maximum stretch and comfort in the chest and shoulders.
5. Smart Buoyancy—Buoyancy is enhanced where you need it, and optimized for the fastest freestyle body position. 
6. Floating Neckline—Improves comfort for long distance swims.
7. Quick-Release Ankles—Fast transitions, every time.