Sukeen Cooling Towel(40x12), Ice Towel, Soft Breathable Chilly Towel What is the principle 1.The super absorbent fiber weave technology of the mesh towel regulates the water inside and ensures water retention, so it\'s treating it kind of like an air-conditioner, and within seconds you get cooler. 2.Like sweat on you skin, when water evaporates it ..