• Three pieces of durable and safe carbon fiber heating element create a large heating area (two times larger than others in the market) to provide maximum warmth around the front and back sides of your hands.
• This hand warmer features flexible ribbed cuffs that help trap the heat perfectly, and ultra-soft fleece-lined insulation that brings the warmth and comfort to the next level. 
• In addition to a battery pocket, two extra utility zipper pockets add quick convenient storage for your personal items, and one SlideLock keeps your valuables extra secure. Change the size to fit with the easy-to-adjust waist strap.
• Wind- and water-resistant shell provides protection from wind and rain when you are watching games at the stadium, taking a rest on a hunting tour, or commuting to work. Easy care, machine washable.

Heating System