Shoulder mobility you never thought possible in a short sleeved swimskin. That “shaved and tapered” easy speed as you knife through the water thanks to advanced hydrophobic textiles and laser bonded seams. A sharper, more connected stroke—powered by ROKA’s IXI™ internal streamline support and textiles, linking your hips to your shoulders for better power transfer and efficient rotation.

Athletes wearing a short sleeve tri kit who don't want to pay a penalty of extra drag from sleeves in the water.

Less experienced swimmers—will benefit from the extra core support in X.3 models to reduce "snaking" in the water.

Athletes racing long course—will benefit from the extra body line support and comfort in X.3 models as core muscles fatigue deep into the swim.

1. Patented ARMS-UP™ Construction: Maximum mobility and zero shoulder restriction for a stronger, more efficient stroke.
2. IXI™ Internal Streamline Support—Patented core support taping keeps your body straight and connects your hips to your shoulders, improving efficiency and power transfer.
3. All-New Stretch-Woven Italian Textile—More flexibility than ever, and light compression smooths wrinkles from your tri kit, limiting form drag.
4. Hydrophobic Coating—Repels water and reduces surface drag and absorption.
5. Laser-Cut Bonded Seams—Improves comfort (no stitching!) and reduces surface drag.
6. Quick Release Auto-Lock YKK Zipper—Eliminates lanyard, reducing drag. Quick release ensures a lightning quick T1: flip down to lock; flip up to release.
7. Silicone Leg Grippers—Printed silicone on inside of leg opening for a straight seam cut and no sausage leg.