Our SMI Cold Therapy Hip Wrap goes on top of, or underneath, clothing to effectively penetrate the area to provide comfort and relief from pain and/or swelling. Two frozen gel bags, enclosed in a white, antimicrobial bandage layer, stay firmly in place. Two additional gel bags are included to ensure that you always have a frozen set of gel bags ready to go when you need it the most. See below for more information. Made in the USA. One size fits most. Includes 1 Wrap and 4 Gel Bags.