150 gsm - Look good, feel good. Well, in the case of Duckworth's Vapor Long Sleeve Henley, the order of that phrase is interchangeable, as this classic henley design is made with our proprietary Vapor fabric: lightweight, soft, cooling, antimicrobial (odor-free), moisture-wicking, ultra-fast-drying, wrinkle-resistant and American-made. In other words, you'll be so comfortable wearing this item on an outdoor adventure or casual downtown outing there's no way you don't look and feel your very best.