... and Water proof 3.Medically recommended 4.Cold therapy The ice bag can fit knees, ankles, wrists or elbows to reduce body ... . And the OEM is available. material100%cotton fabric, and PVC, rubber or latexSize6', 7', 8',9',11'Export countryUSA, Japan, EUPrintingwater ... feel the pain. ii. Heat therapy: fill bag with two-thirds or the ice bag pack with hot water(not boiling), securely screw ...