4-D Rucksack in WheatThe 4 D Rucksack, our first ever line of backpacks. Designed with a fourth dimension in mind: time. Because longevity is at the forefront of this design. Its a backpack made to withstand the elements, the city, and the woods, and made last. Includes: Body: Waxed canvas in wheat tan Lining: X PAC in hunter orange Leather reinforced bottom: veg tanned calfskin leather Back pad and straps: Natural veg tanned leather that will patina beautifully with time