Professional's Choice Ice Boot Sold in pairs, these therapeutic boots can be used on both front and hind legs. A neoprene exterior insulates the frozen gel pockets, keeping the boots colder longer, thus increasing the therapy time. A smooth nylon lining eliminates the potential for damaging the tissue from exposing the skin directly to ice, while also preventing dirt, shavings, and debris from sticking to the boots. Extended hook straps allow easy application for all horses. To activate, just place them in a freezer until frozen, and then transferred to an ice chest or cooler for use away from the barn or a freezer. Packaged in a convenient set of two, these boots also come with a mesh carrying bag. Features: Neoprene exterior Smooth nylon lining Extended hook straps appropriate for sizing Mesh carrying bag included Item Specifications: Measurements: Standard: 133/4" tall x 15" wide Large: 17" tall x 17" wide