Our ECOTEC PERFORMANCE long sleeve polos and half zip pullovers in Print and Peached styles are moisture wicking and quick drying. The performance fabric offers easy care as the micro-polyester yarn is infused with bamboo charcoal to create a natural sun block (UPF 50+) and odor guard for the life of the garment. These shirts are not coated with the chemicals you typically see with performance shirts found in the market today.