Customized Golf, Very Kool Cooling Towel - Sublimation - Hyper-Evaporative, Simply wet, wring, and wear. This towel allows surrounding air to stimulate cooling, while remaining dry to the touch. The Very Kool Cooling towel is made of hyper-evaporative 100% polyester. No refrigeration required; machine washable, line dry recommended. ... #H710S $3.60/each.