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 hoursApplication:* Construction* Freight/Baggage* Drilling/Mining* Oil/Gas Refining* Iron/Steel Work* Delivery/Service* Landscaping/Grounds* Cold Storage/Warehousing* Material Handling
