Don't "Bundle Up"..."Bundle Off" with Thaw's disposable body warmer. Thaw's special blend of natural ingredients activates when exposed to the air to heat up quickly and safely up to 158degF and provide over 20 hours of heat. These large warmers are a great size to put into a coat pocket to provide a long-lasting warmth for your body. Use them all day and when the heat runs out, simply throw them away. Don't let cold stand in your way with the THAW disposable body warmers. Features: 20+ hours of heat Safe, natural ingredients Warms to 158degF / 70degC Air-activated for convenience Odorless and ready-to-use Long-lasting warmth TSA approved for travel 3-year shelf life Additional Details: