COLUMBIA Zero Rules™ short sleeve polo

The Zero Rules polo has sweat-activated, super-cooling technology, and that’s not all. It also wicks and features comfort stretch fabric. Technically, it’s a great shirt. This product incorporates an antimicrobial treatment intended to protect the product from bacterial growth. The active biocidal substance is: pyrithione zinc. Specifications: - Composition: Omni-Freeze ZERO™ Interlock 100% polyester Technology: Omni-Wick™ Performance Wicking: - Our enhanced wicking technology moves moisture away from the skin and disperses it across the fabric surface for rapid evaporation that helps you stay dry and comfortable while being active outdoors. Omni-Freeze™ Zero: Sweat-activated Cooling: - Our original sweat-activated cooling technology to keep you cool and dry.