Developed by Doctors: While other reusable gel ice packs are cheaply made, leak and fall apart, our premium ice pack is based on the highest specifications and developed by specialist doctors in bodily injury. Whether you're recovering from a sprain, muscle strain or twist or just need relief, you can trust our knee ice pack.Multiple Sizes Durable Material - Our knee ice pack is available in 3 different sizes that you can choose from depending on your needs and the location of the injury (see size chart: Image 2). Also suitable for children (under supervision). This super ice bag is made with high quality anti-condensation fabric with a leak-proof cap built to be strong, durable and withstand daily use. add ice and a little cold water to get the perfect ice pack. By limiting blood flow, the ankle ice pack decreases swelling, reduces muscle spasms and especially pain. Ice therapy is used for chronic conditions and for acute injuries like sprains and strains and even for muscle recovery! Our ice pack stays cold for long periods of time and doesn't leak!