M/L Foot Insoles Warmer

Air-activated warmer is safe, natural heat which is environmentally friendly and odorless. Place fabric side up in shoes or boots for up to 5 hours of heat. Thin design fits comfortably in any shoe or boot. Ideal for use when tailgating, watching outdoor sports, working in the yard, jogging, walking the dog, shopping, or commuting to work. Packaged as a pair.

Features:

• Air-activated
• Safe, natural heat which is environmentally friendly and odorless
• Provides up to 5 hours of heat
• Thin design fits comfortably in any shoe or boot