All Chill Patches safer than ever! Our soothing gel-filled chill patches are now made with PVC skin that contains. In case of leakage a bitter taste has been added to the gel so kids will not be tempted to eat it. Football shaped chill patch filled with cool soothing gel is a perfect health care promotion for hospitals, doctor's office, health fairs or sports teams or the NFL! DO NOT FREEZE, Refrigerator-friendly ONLY.