Product DNA What's It Do? Built from the same ultra-strong GORE-TEX® fibres used in marine ship ropes, this is our lightest and most breathable fabric yet. It stands up to wear and tear, rubs less (so you know, less chafing), dries mind-blowingly fast and is super soft. Get ready to outrun and outlast everyone. The Fundamentals Fitted: Next-to-skin without the squeeze GORE-TEX Infinium® fabric is soft, breathable & lightweight for next-level comfort & ultimate versatility Mesh panels for added breathability Dropped, shaped hem for enhanced coverage Reflective details for low-light runs Raglan sleeves Body: 90% Polyester/10% EPTFE Mesh: 93% Polyester/7% Elastane This product is not available for returns