COOL ADVENTURES Made for your most dynamic aerobic activity, this technical shirt beats the heat with our sweat-activated cooling technology. KEEPS YOU DRY Ultra-wicking, cooling fabric manages sweat by reacting with your sweat to lower the materials temperature. - Omni-Freeze ZERO sweat-activated super cooling - Omni-WickThis product incorporates an antimicrobial treatment intended to protect the product from bacterial growth. The active biocidal substance is: pyrithione zinc. - Comfort stretch - Center Back Length: 68.5cm Fabric: - 100% Polyester Columbia Men's Zero Rules Long Sleeve Shirt - Cloudburst