To deliver comforting HEAT, remove the inner sack from the animal slipcover and place in microwave for approximately 1 1/2 to 2 minutes on high heat, then re-insert sack into the animal slipcover.

To COOL, place inner sack in a plastic bag, set in freezer for 1 hour then remove and re-insert sack into the animal slipcover.

Will deliver warmth or cooling for up to 30 minutes.
Outer slipcover is hand washable.