Waxed Duck Canvas with Red Wing Leather GR1, the best rucksack ever built, meets time proven heavy canvas materials and construction. Heritage means it’s proven by our grandfathers, and our grandfather’s grandfathers. And that it will last the test of time for those generations who come after us. For materials, we chose the strongest possible duck canvas with a waxing process proven over the last 170 years, giving the Heritage a retro canvas rucksack look with the durability you'd expect from a GR1. Features Martexin Wax finish, process proven on waxed canvas backpacks for over 170 years Woodland Camo Back Panel: 210D Black Cordura Small hidden zipper pocket underneath the handle Opens Flat making it easier to pack and organize 2"x3" Patch panel on the front with removable leather patch included Extra Padded Shoulder straps and top handle to carry heavier loads more comfortably YKK zippers with silent, glove friendly zipper pulls constructed from parachute 550 cord. Bombproof Laptop Compartment next to your back is extra reinforced and has a false bottom so that when you set your ruck down, your laptop won't even notice A removable, hard plastic frame sheet stabilizes the laptop compartment and allows you to carry more weight comfortably. Multiple Pockets: 3 internal pockets: 1 large elastic pocket, 1 large mesh zippered pocket, and 1 small go-to pocket. External Slant Pocket: 1 external slant pocket for quick access to keys snacks, and other small items. MOLLE Attachments: 3 rows of internal MOLLE webbing let you customize GR1 how you want. Rainproof: Our rucks are highly water resistant aka rainproof. Perfect Travel Size: TSA Compliant and fits under the seat in front of you. Backed by SCARS Lifetime Guarantee Specs + Materials Primary Material: 10.10 oz Army Duck Waxed Canvas 21L Dimensions: 11.5"W x 18"H x 5.5"D 26L Dimensions: 12"W x 20"H x 6.75"D 21L External Slant Pocket: 11"W x 10"H 26L External Slant Pocket: 11.5"W x 12.5"H 21L Internal Mesh Pocket: 11"W x 10"H 26L Internal Mesh Pocket: 11.5"W x 12.5"H 21L Internal Canvas Zipper Pocket: 11"W x 6"H 26L Internal Canvas Zipper Pocket: 11.5"W x 6"H Laptop Protection (21L): Fits most 15" laptops Laptop Protection (26L): Fits most 16" laptops Full grain leather sourced from S.B Foot Tannery in Red Wing, Minnesota — a major supplier of leather to the US Military  Leather on the Handle and Bottom Panel