The iGelSoles Cold Therapy Socks provide at-home foot pain relief for the discomfort caused by foot conditions, medical procedures, and foot fatigue. This cooling foot wrap chills your entire foot and restricts blood flow to reduce inflammation, burning, swelling, and aching. Once the socks are removed, blood circulation will be improved in the affected area to promote healing and alleviate the pain caused by conditions such as Neuropathy, Plantar Fasciitis, and Arthritis. The Cold Therapy Socks include two (2) heel packs, two (2) toe packs, and two (2) full-length packs, chilling a large surface area excellent for chemotherapy and postpartum care. The ice socks also come with two (2) adjustable compression straps for better support and relief in areas experiencing prominent pain and swelling. For cold application, chill the gel packs in the freezer for at least two (2) hours, then place them in each cold therapy sock. For hot application, place the gel packs in hot water for 7-10 minutes or microwave 20-30 in medium power, then let them cool down for 30 seconds; if more heat is required, microwave in 10-second increments until the desired temperature is reached. Designed with a fleece-lined nylon fabric, the iGel Soles Cold Therapy Socks provide a comfortable, breathable fit while lifting away your foot pain for extended periods. SIZING: Small: (M) 4-8, (W) 6-9 Large: (M) 6-9, (W) 10-12