Evaporative Cooling Vests TechNiche's Evaporative Cooling Vests provide 5-10 hours of cooling relief per 2-3 minute soaking. They are lightweight, durable, and washable.   Evaporative Cooling 6529 HyperKewlTM Standard Sport Vests Simple V-neck w/ zipper closure; work for a wide range of people and uses Comfortable, quilted nylon outer with HyperKewlTM polymer embedded fabric inner, water-repellant nylon liner, and black cotton-poly elastic trim Silver, Black, Royal Blue, Hi Viz Lime, Khaki, USA Flag, Army ACU Digitized Green, Marine Desert Digitized XS, S, M, L, XL, 2XL, 3XL Custom sizes available     Evaporative Cooling 6533 HyperKewlTM Standard Sport Vests w/Sleeves Simple V-neck w/detachable sleeves and zipper closure offer options for cooling and sun protection Comfortable, quilted nylon outer with HyperKewlTM polymer embedded fabric inner, water-repellant nylon liner, black cotton-poly elastic trim, and zipper sleeve attachments Silver, Black, Royal Blue, Hi Viz Lime XS, S, M, L, XL, 2XL, 3XL Custom sizes available     Evaporative Cooling 6530 HyperKewlTM Deluxe Sport Vests High mandarin collar for additional cooling relief and sun protection, handy front pockets, and zipper closure; designed especially for bikers Provide 5-10 hours of cooling relief per soaking; lightweight, durable, and washable Comfortable, quilted nylon outer with HyperKewlTM polymer embedded fabric inner, water-repellant nylon liner, and black cotton-poly elastic trim Silver, Black, Royal Blue, Hi Viz Lime XS,S, M, L, XL, 2XL, 3XL Custom sizes available     Evaporative Cooling 6532 HyperKewlTM Deluxe Sport Vests w/Sleeves High mandarin collar w/detachable sleeves, front pockets, and zipper closure combine to offer the ultimate cooling and sun protection solution Comfortable, quilted nylon outer with HyperKewlTM polymer embedded fabric inner, water-repellant nylon liner, black cotton-poly elastic trim, and zipper sleeve attachments Silver, Black, Royal Blue, Hi Viz Lime XS, S, M, L, XL, 2XL, 3XL Custom sizes available     Evaporative Cooling 6531 HyperKewlTM Ultra Sport Vests Pull-over w/mesh ventilation panels and scoop neck; ideal for runners and cyclists Comfortable, quilted nylon outer with HyperKewlTM polymer embedded fabric inner, water-repellant nylon liner, and black cotton-poly elastic trim Hi Viz Lime with SIlver trim, Royal Blue with SIlver trim, Silver with Silver trim, Black with Silver trim  XS, S, M, L, XL, 2XL, 3XL Custom sizes available     Evaporative Cooling 6538 HyperKewlTM Traffic Safety Vests V-neck w/snap closures and ANSI compliant color w/3M reflective tape ANSI Class II compliant vest Provides 5-10 hours of cooling relief per soaking Comfortable polyester outer, with HyperKewlTM polymer embedded fabric inner and water repellent nylon liner Three large front pockets Hi-Viz Lime with Cool Blue lining S, M, L, XL, 2XL, 3XL