Water resistant to let you continue on with your daily activities including bathing without peeling off Do not use on open cuts and scratches or medical skin conditions Use efficiently by applying on trigger points, acupuncture points, tense muscles, sore joint, etc Wear breathable cross tape for up to 7 days with out having to worry about skin irritation Material: 80% polyester, 15% polyurethane & 5% acrylic. Latex free K-tape Cross-Tape gives you the feeling of acupuncture without the need of needles. Used to help reduce pain in your muscles and joints. Specially designed fibers produce an electric charge when the paper backing is removed.