Whether you're backpacking around the world, trekking a mountain range or commuting into the city, Osprey's Ultralight Stretch Mesh Sack 12+ will become a daily essential. Built to help organise your pack, they feature dual expansion panels to accommodate & separate your gear. The rectangular shape allows easy packing & maximises your space, easily slotting into your pack thanks to their siliconised nylon material. The Ultralight Stretch Mesh Sack is ideal for packing & organising your clothing, sleeping gear & equipment.