The Chattanooga ColPac Cold Therapy Pack provides instant pain relief to treat fever, bruises, sprains, strains, and helps to manage swelling. It delivers up to 30 minutes of soothing relief. Simply apply immediately after an injury to control the inflammation of soft tissue. The patented design of the Chattanooga ColPac gently delivers soothing cold therapy and stays pliable during treatment. Each blue vinyl Chattanooga ColPac is latex-free and is filled with non-toxic silica gel, so it’s safe for all ages to use.