Product DNA What's It Do? 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. The Fundamentals Fitted: Next-to-skin without the squeeze Soft, ultra-lightweight fabric delivers superior breathability & incredible comfort Material wicks sweat & dries really fasts Dropped, shaped hem for enhanced coverage Reflective details for greater visibility on low-light runs All-over print 100% Polyester This product is not available for returns