As one renowned rock climber put it If you plan on climbing alpine Design, then the Direttissima is the pack for you. The Direttissima's straightforward design allows you to fill it to the brim with everything you necessity for base camp without breaking your back. Take off the lid and strip it down for the Great Alpine assault pack. The Mountain Hardwear Direttissima Backpack is a 52 liter, heavy duty climbing pack for long days in tough conditions or multiday trips. With removable hip belt, frame sheet and lid, the pack can be compressed to the body for small loads. Compression straps tuck away for a clean look and superdurable HardWear tarp slides over rocks and sharp edges.