Cold Weather/Winter Shipping
72 hour UniHeat heat-packs activate slowly and warm up after 30-45 mins. They reach their peak temperature in approximately 4 hours. The heat-pack may stop generating heat if temperatures inside the box drop below freezing (32F – 0C) These heat-packs are the best choice for 1-3 day Priority shipments. We only use brand new heat-packs, never used ones and include the new original packaging in the box so you can be confident the heat-pack is brand new. Environmentally safe with non-toxic ingredients and can be disposed of with normal trash.
NOTE: Heat-Pack and should be purchased at the same time as your order, We do not sell these individually without an order. Thank you.