This is a black Marmot Ultra Kompressor backpack preloved but in good conditio. Barely there signs of wear, no stains, smells, nor discolorations. It is an ultralight day pack designed for hiking and climbing. The pack is highly compressible and can often pack into its own lid. Key features according to their website: include Airmesh shoulder straps, a hydration port, and multiple compression straps. The volume is approximately 22 liters (1250-1350 cubic inches).