When you plan to cover ground, Arc'teryx's Aerios 18 backpack is up for the challenge. Lightweight, durable and water repellent, it ticks all the boxes, but with added extras too. The interchangeable harness fits a range of body types, while multiple pockets keep essentials such as soft flasks or your phone close at hand. Add a breathable back panel, removable waist belt and front bungee for extra gear, and you're set. 210d Cordura Nylon, Lining: LT Ultra Mono Lightweight Mesh, Water Repellent, Multiple Pockets, Adjustable Strap, Removable Waist Belt, Reservoir Bladder Embroidered Branding Style Code: X000010704-023447, - Arc'teryx Aerios 18 Backpack Mongoose/Nucleus