- Ice/heat bag alleviates pain, reduces inflammation, and promotes healing for injuries, sprains, and muscle soreness - Bag is made of durable polyester and pongee fabric - No worrying about messy drips or condensation, ensuring comfort and peace of mind with a leak-proof design - Soft and flexible exterior conforms to your body for a comfortable and gentle application - Wide-mouth opening for easy fill with a screw-on cap - Use with ice cubes, crushed ice or cold water - For warm therapy, fill with hot liquid at or below 140 degrees F - Holds up to 47 oz of liquid - Keeps warm for up to 30 minutes and cold for up to 1 hour - Hand wash only