COLUMBIA Zero Rules short sleeve T-shirt

A super-cooling tech tee with stretch and sun protection, this soft and lightweight men’s shirt sports our industry-leading cooling technology, which reacts with your sweat to lower the material’s temperature and keep you cool during dynamic aerobic activity in the heat. Features: - Omni-Freeze ZERO™ sweat-activated super cooling - Omni-Wick™ - Omni-Shade™ UPF 30 sun protection - Modern Classic Fit - Comfort stretch - Antimicrobial Specification: Fabric: - 100% polyester ZERO interlock Technology: - Omni-Freeze™ ZERO: Sweat-Activated Cooling - Omni-Freeze™: Cooling and Wicking Fabric - OMNI-SHADE®: Sun Protection