DESC: This 18" backpack is made of 1680 D./PU Dobby rip stop/PVC and measures 18" x 13" x 8". The bag has one large main compartment and an organizer in the front accessory zippered mesh pocket. The side buckle system helps keep everything secure while the air flow foam back system keeps things comfortable. This backpack also has S-shaped padded shoulder pads and self-repairing excel zippers. Available Colors: Black/Red, Black/Dark Orange.