The Walgreens Knee Sleeve is made of an innovative elastic/neoprene blend providing comfort, support and stability with the benefits of heat retention. Designed to provide you with the optimal support you need while assuring proper fit and comfort. Provides compression to reduce swelling. Designed to provide support while assuring comfort and fit. Surgical elastic/neoprene blended material that comfortably moves wit you and is breathable to release moisture. Comfortable edges prevent rolling and slipping. This is a brand new, never worn knee sleeve. For more information, please e-mail me. The item is kept in a pet and smoke free home. I will mail within 24 hours (business days) of receiving cleared payment. Payment is expected within 3 days of purchase. Check out my other items! Sign up for my email newsletters by adding my eBay Store to your Favorites!