Cotton-based KT Tape is an instrumental tool for mountain runners and other athletes dealing with the constant fine-line dance between getting after it and getting injured. This tape is cotton-based (waterproof, synthetic versions are also available), comfortable to wear, and, when properly applied, can last up to 3 days of use. KT Tape is a valuable resource for home-based injury prevention and faster recovery. It has been proven effective in pain relief and support for countless common injuries, such as hamstring, quad & calf strains, runner’s knee, Achilles tendonitis, plantar fasciitis, and shin splints. Comes in 20 precut strips.