This is an air jacket from UNO61, an Italian company. The lining is a type of tube, and by inflating it with air, you can store air in the lining, providing insulation. It's normally a lined jacket. Air is introduced through an inlet on the inside of the right chest. All zippers (front placket, both side pockets, cuffs) are water-resistant zippers. There are magnets on the inside of the front placket. Color: Black Size: L (Japanese size) Material: Outer - Nylon Oxford Country of Origin: Italy