If you're training for an ultra-trail, or taking part in trail running, you know you need specialist gear that's as dedicated to top performance as you are. This short sleeve shirt provides long-lasting cooling by utilising your sweat to lower the temperature of the material and its wicking properties are second to none in keeping your skin dry and comfortable. To help keep things sweet, antimicrobial treatment protects from bacterial growth. Features drop tail hem and reflective detail. FEATURES: Omni-FREEZE ZERO® sweat-activated cooling Omni-WICK® Antimicrobial treatment protects this product from bacterial growth Drop tail hem Reflective detail FABRIC: 100% Polyester 86% polyester / 14% elastane Omni-Freeze® ZERO: Sweat-Activated Cooling OMNI-WICK®: High-Performance Wicking Fabric