This is an Evaporative Cooling Product (ECP). Just submerge in cool water for several minutes, blot dry and wear! Fabric retains hydration keeping you cool for hours.

100% cotton outer with polymer embedded fabric inner, water-repellant nylon liner, and hook & loop attachments Combined cooling relief and protection from the sun. Adjustable hook & loop closure with removable cooling liner. Provides 5-10 hours of cooling relief per soaking; lightweight, durable and washable liner.