Harken redefines the sailing backpack. The TPU-impregnated nylon is waterproof, abrasion and stain resistant, and colour-fast. The roll-top closure provides a waterproof seal, and the air-purge valve allows easy compression. You’ve got two exterior pockets for water bottles, two internal storage pockets, and an elastic cord to stow your jacket. The back is padded, ventilated, and non-abrasive. Waist, chest, and shoulder straps are adjustable for custom-fitted comfort. What’s more, your laptop will be tucked into a padded, elevated sleeve, so it won’t hit the ground when you set your bag down. So much for roughing it.