" 500D 66/34 nylon/polyester Lining: 100% polyester Large internal pocket with zipper closure and three internal stash side pockets Three external stash side pockets Two large zipper closure side pockets with reflective pocket trim and pull tabs Stashable padded backpack straps and padded shoulder strap PU coated stitched synthetic leather bottom 20" W x 12 1/5" H x 7" D"