Product DNA Every serious runner needs a super-breathable shirt like this—it's light, won't chafe, and will wick sweat to keep you cooler all run long. Fitted: Next-to-skin without the squeeze Soft, ultra-lightweight fabric delivers superior breathability & incredible comfort Material wicks sweat & dries really fast Mesh back panel provides ultimate breathability Shaped hem with side slit detail for enhanced coverage Reflective details for greater visibility on low-light runs 100% Polyester