Anatomically shaped cooling boots in strong 3D mesh that allow airflow while providing support. PVA+polyester inside which provides a cooling effect when wet. In combination, the materials help extract excess heat from the horse's legs, suitable for use for example after intense exertion, and can help reduce swelling. To activate, place the boot in cold water for up to 5-8 minutes, avoid soaking for more than 30 minutes, never use the boots dry. Do not freeze! Easy to put on using 4 strong elastic Velcro straps. We recommend using the boots a maximum of 2-4 hours at a time. Make sure the legs are clean and free of mud or dirt before putting on the boots.