MOUNTAINTOP Mountaintop Mountaineering Backpack 40L Lightweight Camping Backpack / Rucksack Waterproof Hiking Rucksack Outdoor Large Capacity Women's / Men's Travel Purple nylon rucksack with mesh back panel and adjustable straps Yellow Made of 600D polyester fabric, excellent water repellency and abrasion resistance. Zippers and buckles are manufactured by the famous manufacturer YKK, ensuring durability. Size: Length 51cm x Width 35cm x Height 16cm Capacity: 40L 【Large Capacity】40 liters Multiple pockets inside and out (1 main compartment (can hold a 15.6-inch laptop), 2 side mesh pockets, 3 front pockets) to store the necessary items for mountaineering. The mountaineering backpack has compression straps on the top, bottom, and sides to securely hold trekking poles, tents, etc. You can quickly take out items at the bottom of the main compartment by opening the bottom zipper. Comes with a rain cover at the bottom. 【Ergonomic Design】Mountaintop's M5812II rucksack adopts wide S-shaped shoulder straps and breathable sponge, ergonomically designed to effectively reduce body weight and prevent fatigue even after carrying it for a long time. The back is made of a highly breathable mesh sponge structure for a more comfortable carrying experience. Perfect for outdoor activities such as day hiking, 1-night/2-day camping, and 2-night/3-day trips. Used only once for travel. Please refrain from purchasing if you are concerned about minor scratches, small stains, or odors, as this is a used item. Overall in good condition, but there is a small white stain inside. The product condition is based on amateur judgment, amateur measurements, home storage, and home cleaning, so please refrain from purchasing if you are sensitive to these factors.