100% double waxed canvas. The fabric is quite thick and, because it is waxed, it is extremely water resistant. Using as bushcraft backpack, camping backpack, outdoor backpack, hiking backpack, daypack, trekking backpack. Sizes: 30 -40-50 liter options are avaible. Type : leather flap and bottom or canvas flap and bottom. All features is same only flap and bottom type is optional. Model name othello dark of bushcraft. Our production partner page is. We can make custom backpack depending on your request. This item is made of metal buckles, d rings, waxed canvas, genuine leather, brass, canvas, vegetal leather, ring, leather and nikel.