The Chill-Its 6602 Evaporative Cooling Towel uses a super-evaporative PVA material to absorb water and then allow it to evaporate slowly for instant, long-lasting cooling relief. This advanced, poly vinyl acetate is designed to create a feeling colder than ambient air temperature and absorb and hold more water than other cooling towels for a longer-lasting cooling. Use this neck cooling wrap for hours or for quick relief. Machine-washable towel is completely reusable. Simply just re-wet to activate. Evaporative towel is the perfect cooling headwear for anyone working in the heat and exposed to possible heat-related illnesses are possible. It is great for workers in construction, carpentry, mining, landscaping as well as outdoor adventurers who enjoy camping, yoga, baseball, softball, soccer, running, biking, days at the beach or on a boat, golf, yard work, fishing, gardening, hiking, riding motorcycles and more.