Designed for lightweight performance, Filson's Surveyor Backpack replaces the brand's Tin Cloth with lightweight 500D Cordura nylon and 1000D Cordura woven like their Rugged Twill. Both abrasion-resistant materials are dry-waxed for water resistance similar to their cotton counterparts. A generous 36L capacity can handle several days' worth of clothes and essentials, with zippered pockets on the interior and exterior for organization, a padded laptop compartment, and flap-covered water bottle pockets on the sides. The interior is lined with ripstop nylon for added durability, and both the contoured shoulder straps and back panel are padded for comfort.