WASING 80L Hiking Backpacking Packs for Outdoor Hiking Travel Climbing Camping Mountaineering WASING-WS-80LPK-green COMPRESSION STRAPS- For tying up your pack or hanging sleeping bag, tent, hammock, and other gears. Top load main compartment with gusseted drawstring closure and adjustable top lid Ergonomical air diversion system and breathable mesh on the back for pressure reduction. No matter what form your adventure takes; High Sierra; Adventure This Way DURABLE: The backpack is made from High Quality Water and Tear Resistant Nylon fabric, provide strengthen and long-lasting performance with minimal weight; Adjustable and breathable padded shoulder and strap to meet different requirements for both men and women