Eco-Drytech with Eco-charcoal: 50% Recycled Polyester (post-consumer recycled plastic) / 50% Eco-charcoal (derived from coconut shells and nano-bamboo particles). A set-in sleeve, four-button polo. Made with the same charcoal that is used in a water purifier to remove odour and taste, Eco-Drytech with Eco-charcoal wicks moisture, eliminates odour, and blocks U.V. rays. This item is bluesign® safety; every component of this product meets the highest environment, health and safety standard. Features sturdy, double-needle stitching at the hem and cuff, and a stylish, contrast self-fabric accent inside the placket and collar.