Offering more intense cold therapy than our Soft Comfort or Dual Comfort CorPaks, the Vinyl CorPak offers up to 30 minutes of cold therapy to help relieve strains, sprains, headaches and other soft tissue injuries. Four distinct sizes to accommodate any area. Freeze for 1 hour minimum before use or store in the freezer for convenience. Filled with nontoxic, biodegradable fill, packs remain soft and flexible even when cold. Vinyl surface can simply be wiped clean as needed, making it ideal for clinical use. Vinyl CorPaks should be used with a towel or other protective covering.