The Gregory Baltoro 100 Pro Backpack is a beefed-up version of the popular Baltoro line. With its spacious 100 liters of capacity came the need for greater support, so Gregory thickened the foam and increased the frame size to carry along the massive hauls we burden. That makes this behemoth best suited for our biggest treks into the backcountry. The Baltoro hosts access from every angle—top, bottom, and front—so we never have to struggle to grab what we need. Gregory equipped it with a dynamic harnessing system that adjusts to our movements to steady it on our backs as we scramble over rocks and under branches. AirCushion mesh is placed along every contact point for an ergonomic and breathable attachment that makes sure we're well aired out when working up a sweat. And as an added bonus, the Baltoro is now crafted with a sustainable design: less carbon, partially recycled materials, PFC-free DWR, and 50% reduced plastic.