Smart Tech Heating Vest

   This vest is the perfect way to keep warm with its internal smart USB connection heating system lasting 6-8 hours or longer to get you and the family through any early morning commute or cold day outside. Perfect for cooler months' shopping trips. This vest keeps you nice and cozy at outdoor sporting events like baseball games, football, hiking, camping, fishing, you name it...These are going fast get them while your size lasts... Specs Low 86°F  Medium 104°F  High 110°F -122°F  Fabric lining and filler; nylon with an eco bamboo charcoal fiber blend.Color: gray, black, burgundy, light blue, dark blueSize: M, L, XL, XXL, XXXL, XXXXL, XXXXXL size in cm  M L XL XXL 3XL 4XL 5XL Length 58 60 62 64 66 67 68 bust 95 99 103 107 112 117 122 shoulder 38 39 40 41 42.5 44 45.5 2. Please check the size chart carefully before you buy the item, if you don't know how to choose size, please contact our customer service at info.tech10secure.com for a size chart review and questions