Men’s Hypercross Shorts are made with a compression design, sweat-wicking, quick drying performance support and ventilated comfort. Quick drying fabric helps you get drier, faster. Elastic waistband provides a snug, comfortable fit. – Using thermal heat aluminum mesh woven into the waistband to support heat retention during workouts. – Zoned compression for support and a locked-down feel. – Flat lock stitching move smoothly against your skin. – 4-way stretch fabric for natural range of motion. – Fabric: Dri-FIT 86% polyester/14% spandex. Please read size guide and washing instructions below. If you have any questions, please contact customer service . Also read the Rebelz Ultimate No-Gi Guide for advice and tips.