N-FERNO FULL FOOT WARMING PACKS L/XL QTY 20

Foot Warming Packs: Self-contained packs activate when exposed to air. Provides warming to full foot and will fit in shoes or boots. Features , To activate, just open the pack , All natural ingredients heat up when they contact oxygen , Seal from oxygen in Zip-Loc bag and reuse the next day , Foot style warms up to 7 hours Application: , Construction , Freight/Baggage , Drilling/Mining , Oil/Gas Refining , Iron/Steel Work , Delivery/Service , Landscaping/Grounds , Cold Storage/Warehousing , Material Handling