OccuNomix Miracool 31 1/2" X 4" Cooling Neck Wrap is made of lightweight super-absorbent cotton for absorption and durability. It comes with tight weave with interlock stitching for durability and triple washed to prevent fabric bleeding. Neck wrap is soaked in cold water for 10-20 min and it is used. Reusable neck wrap stays hydrated and cool for several days.