1,050 Denier MIL-SPEC Water Repellent Ballistic Nylon material outside, light weight industrial grade CORDURA inside. Designed to be the ultimate daily commuter/carry pack, the Bucktown boasts two large, mega easy to access YKK Water-Repellent VISLON AquaGuard Zipper compartments. The outer compartment is perfect for small and large storage alike, with double pockets and pen organization that are all handcrafted using military grade thread and triple stitched at the joints for added durability. We added an external easy to access YKK Water-Repellent VISLON AquaGuard Zipper pocket for quick access into the front of the bag. Zip up the outer compartment and check out the back one. This compartment has enough storage space and possibilities for whatever you could throw at it: a computer section fully lined with thick closed cell foam technology and topped off with 500 Denier MIL-SPEC CORDURA material for a cleaner look & finish. The computer section is the first of it’s kind from DEFY as it’s not only designed for 15" & 13” MacBook Pros, but also for most other computers of this size, or utilize it for added folders, tablets, etc. Now onto the side pockets, perfect for water or beer bottles and each has a solid matte black steel D-ring for hanging a bottle opener, carabiner, keys or whatever the hell you want on it. The back of the bag, bottom and shoulder straps are fully padded with your back in mind and boast more thick closed cell foam technology for comfort. All hand-crafted a stone’s throw away from Chicago's Bucktown neighborhood by people obsessed with hand-crafting happy.