Ergodyne 16992 N-Ferno 6992 Toe Warmers, 7 hrs.-(Box of 40 Pairs)

Warmers are made specifically for the toes?an area most at risk for hypothermia
Adhesive toe warmers attach to socks for easy and durable wear
Hot packs fit inside any shoe or work boot without adding too much bulk
Packs activate quickly when exposed to air (no batteries required)
Small warmers easily fit into work bags or jacket pockets
Disposable
Non-toxic ? made with all-natural ingredients
Keep warm while on the job or while enjoying cold outdoor activities such as hunting or hiking