The "Kirk" backpck utilizes almost a complete side of leather for one bag and no expense has been spared in creating this bag. All the hardware is solid brass and all zippers are YKK. The straps and accents are English Bridle Leather and it features an Authentic Pendleton Wool rear panel. This particular bag is made from a beautiful waxy heritage saddle leather. The interior is a single open compartment that will fit most laptops with plenty of room to spare for files, books and other items. Whoever said backpacks are for school kids obviously has never rocked one as cool as this.