MOUNTAINTOP Outdoor Sports Professional Hiking Large Backpack Daypacks Waterproof Mountaineering Bag M5822 Unisex 60L Trekking Travel Bag Rucksack Large capacity of 55L+5L, breathable, widened and thickened S-type strap, high elastic breathable back padding, massage breathable waist padding, mesh belt, supwer carrying-CR professional adjustable weight decompsition sytem, could be adjustable according to your height, 3 sizes for the height: S/M/L Large front pocket, multiple zippered side pockets, and multiple elastic bands, powerful storage function, inside the bag, there is a cap compartment design, very convenient for outdoor sports. Two different fabrics: quality polyester fabric and Korea Cologne Fabrics; water repellent, tear resistant, wear resistant, breathable and moistureproof, smooth and comfortable SBS zipper, YNS buckle-Cold-resistant and securely; reflective strip design, higher safety factor for night; water outlet design, more humane, more convenient for travelling Size: 74cm(H)x39cm(L)*21cm(W)