Techniche Evaporative Cooling Vest | TECHNICHE-6529Cools down by up to 15 C Machine Washable up to 60 C (50 wash test) Simple v neck with front zip closure; works for a wide range of people and uses Can provide 5 10 hours of cooling relief per soaking Lightweight, easy to activate, and durable Comfortable quilted nylon outer with HyperKewlTM fabric inner, water repellent nylon liner, and black poly cotton trim Adult Sizes: XS, S, M, L, XL, 2XL, 3XL