72-hour Heat Pack/Priority Mail Upgrade

This heat pack is designed for consistent and reliable warmth over a 72-hour period, maintaining an average temperature of 70°F in a 1 cu. ft. box. The price includes an upgrade to priority shipping for faster delivery. Before placing your order, please check your local weather forecast. If temperatures drop below 35°F at night, we recommend adding a heat pack for added protection. Please note: While the 72-hour heat pack is designed for extended warmth, it is not a guarantee. The seller is not responsible for any frost damage or delays in package delivery.