This Urban Gray Military style 3 Day Molle assault backpack is the perfect size for men, women, travel, work and law enforcement to carry all your essential gear. This 3 day assault backpack features multiple compartments and MOLLE webbing to organize and customize your backpack to your needs. With over 2,200 sq inches of storage capacity. Main compartment dimensions: 18? H x 12? W x 6.5? D (1,404 sq inches). With Hydration compatible compartment, two large pockets, zippered compartment, and two smaller pockets. Middle compartment 18? H x 12? W x 2.5? D (540 sq inches). With a large mesh internal zippered compartment, 3 pockets, and two pen pockets. Hydration bladder compatible, with drink tube routing onto either Padded shoulder straps with metal D-rings. Adjustable Sternum and Waist Straps with quick connect buckles. Top Outside Compartment: 5? H x 10.25? W x 1.25? D (64 sq inches), 1?H X 5?W loop fastener for attaching Name Tape. With two internal pockets. Bottom Outside Compartment: 10.75?H x 10.75?W x 1.75? D (202 sq inches), with a 2?H X 3?W loop fastener for attaching hook and loop patches. With two internal zippered compartments, two mesh pockets, and a key chain holder. MOLLE compatible webbing on the front & bottom pockets, shoulder straps, and the sides of the backpack. Heavy Duty Lockable Zippers on ALL of the compartments to keep your valuables secure. Carry Handle Strap on the Top with hydration hose pass-through?s on both sides of Strap. Four Adjustable Side Compression Straps on the Sides of the backpack. Durable PVC construction, that is chemical and water resistant.