This ultra-light bag is perfect for your mountaineering/climbing adventures. We lowered the weight to 550g and introduced a smartly placed webbing strap that acts as a frame when the bag is loaded up. This bag packs a punch and holds your heaviest gear without weighing you down on your day-long endeavors. Eddie Bauer Hiking Backpack Bacon 2.0 Outdoor/Camping Backpacks - Grey