Cold weather will never keep you from any outdoor activity when you go afield with these handy, safe chemical warming packs. No flame or external heat source is required. Just activate the completely contained chemicals and enjoy comfortable warmth for hours. Available: Just stick one of these Body Warmers in an inner layer of clothing and enjoy hours of warmth. Great for long sits or aching muscles. Adhesive backed. Per 6. 12-Hour Warm Packs last 12 hours or more, 135 to 158. Great for warming jackets or sleeping bags. Per 10. 24-Hour Warm Packs lasts 24 hours or more. 4" x 5-1/4". Per 10. Mini-Handwarmers are perfect for gloves or pockets. Lasts seven hours or more with an average temperature of 135. Size 2" x 3-1/2". 10 pair. Place the fleece Sleeping Bag Warmer liner wherever you need warmth and comfort. Uses 12- or 24-hour warm packs. One 12-hour pack included. 6" x 4". Per 1. The Toe Warmers are rounded with an adhesive backing to stick to the outside of your sock for up to five hours of warmth. Average temperature of 100. Available in 6-pair or 8-pair packs.