We've all got a favorite mug - some well-worn piece of porcelain that's seen more than its fair share of morning brews. Well, that vessel's about to have some serious competition thanks to Bradley Mountain. They've designed and crafted this jar-style hot-and-cold mug from scratch, with a thick glass body and a two-piece screw-on cap. On top of that, they've wrapped the whole thing in a thick bridle leather sheath, meant to protect your palms from both the heat of your coffee and the cold of your beer, if that what you so choose to fill the it with. And why wouldn't it be?