FROM BAGHDAD TO NYC GR1 - built to thrive in Baghdad and NYC - has proven itself the world over including at thousands of GORUCK Events as the greatest rucksack ever built. That&';s why any change, any modification of any kind is a huge deal to us, requiring extensive testing and a strong why. In this case, four years of testing a new fabric (210D CORDURAA(R) ) for the back panel. We have used this fabric on the Rucker&';s back panel since 2020, we see no failure through our Scars Lifetime Guarantee Department - but we see a lot of upside. It&';s more versatile to wear with travel shirts like Merino Wool or tank-tops. Hell, you can even wear it shirtless if that&';s your thing. After all of this data and usage of 210D on the back panel and under the straps, we have now updated GR1 - our flagship rucksack, Built in the USA - and this is our first significant update to GR1. You&';re going to like it better because it&';s even more versatile now, no matter how you plan to use it. And we hope you use it hard, and all over the world. Proven to Special Forces standards, GR1 is synonymous with the best of American Manufacturing. Each GR1 is built to last and comes with our Scars Lifetime Guarantee. Features 210D Back Panel and Shoulder Straps: Zero abrasion on fabric and skin. All-new 210D HT (High Tenacity) CORDURAA(R) on the back panel and underside of the shoulder straps doesn&';t irritate skin or chew up apparel. Opens Flat making it easier to pack and organize 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 external and 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 Scars Lifetime Guarantee: The best guarantee on the market Overbuilt in the USA Specs + Materials 21L Dimensions: 11.5"W x 18"H x 5.5"D / 21L Weight: 2.8 LBS26L Dimensions: 12"W x 20"H x 6.75"D / 26L Weight: 3.1 LBSPrimary Material: 1000D Cordura w/ 210D Back Panel and Shoulder StrapsLaptop Protection (21L): Fits most 15" laptopsLaptop Protection (26L): Fits most 16" laptopsExternal Slant Pocket: 21L: 11"W x 10"H / 26L: 11.5"W x 12.5"HInternal Elastic Pocket: 21L: 11"W x 10"H / 26L: 11.5"W x 11"HInternal Mesh Pocket: 21L: 11"W x 10"H / 26L: 11.5"W x 12.5"HInternal Cordura Pocket: 21L: 11"W x 6"H / 26L: 11.5"W x 6"H