FEATURES of the Timbuk2 Red Hook Crit Backpack Ultra-light. compressible bag. folds into its own internal pocket for easy stow Carry as a duffel or backpack. with shoulder straps that tuck away Two internal pockets to help organize your gear Outside pocket with flap over for holding U-lock or small stuff Water resistant. silicone coated fabric and PU coated water-resistant zipper Incognito reflective elements for nighttime visibility