If you are on your feet all day, have chronic conditions, or are recovering from a foot injury, end every day by slipping into a pair of our customer-favorite Cold Therapy Socks. They provide targeted cold therapy for sore, tired, cold or aching feet due to work, sorts, or daily wear and tear. INCLUDES: one pair of comfortable nylon material cold socks, four full-foot-length gel packs, and four half-size gel packs. They help provide fast relief for sore, aching or hot feet. The freezable, full-foot-length gel pack is designed to sit below each foot. For added relief, the half-size gel pack that can be placed either over the toes or behind the heel. Washable and reusable.