Carhartt UM0223M Men's Force® Midweight Micro Grid Base Layer Crewneck Color:Black this backpack caters to both Size:15.0 D this backpack caters to both outdoor enthusiasts and urban adventurers alike 100% nylon shell with storm defender waterproof breathable technology two layer membrane with rain defender durable water repellent 10K 5K protection rating fully taped waterproof seams attached hood with visor full length zipper with outer and inner storm flaps Front chest pocket two lower front pockets with zipper closures and storm flaps Interior drop in pockets hook and loop adjustable cuffs Adjustable cord lock at hood and hem back length: large regular 29 Flatlock seams reduce chafing in high friction areas and tagless labels eliminate extra stitching and provide next to skin comfort Concealed thumb loops give you the option to keep wrists and top of hands covered as well