Grabber Peel n' Stick Body Warmers 

The portable heating pad you can wear. Grabber Body Warmer is soft on one side and adhesive on the other. This warmer can be used anywhere heat is needed and provides soothing comfort for minor aches and pains. The warmer is odorless, clean, dry, non-toxic, non-flammable, and biodegradable. No shaking or kneading required; simply open package and stick warmer to the inside of clothes for all day warmth.
Grabber Peel N’ Stick Body Warmers are great for travel, cycling, snow sports, camping, fishing, hunting, and spectator sports. Also great for relieving pain associated with arthritis and poor circulation.