Hard on your gear??If the answer is yes, the Deva is your friend. The rubberized bottom and 210-denier ripstop nylon were the burliest of the packs we tested. While the top compartment of this massive bag transforms into an over-the-shoulder daypack in seconds, the waist belt’s ratcheting system isn’t as easy to use. 6.3 lbs, 5,187 cu in; gregorypacks.com