1.Single squeeze allows for easy activation of packs offering immediate relief to injured area; 2.Non-woven lining helps prevent the pack from sweating and can be placed directly on the skin; 3.Flexible material conforms to body contours 4.Reman cold 15-40 mints and achieves a low temperature of 25 F; 5.Ideal for minor sprains,burns, nosebleeds and headaches, reduces swelling.