The EquiFit GelCompression Therapy Line reduces inflammation, controls swelling, and decreases risk of injury. GelPaks adhere to an outer shell that provides air compression via hand pump, and retain intense cold/heat while conforming and remaining pliable out of the freezer. Eliminate the bulk of machines and cables associated with traditional cold therapy application. The EquiFit GelCompression Therapy Line consists of TendonBoot™, HockBoot™, KneeBoot™ and BackPack™. One size.