The 40L Backpack was designed to offer the perfect balance between durability, size, lightweight, compact, and travel/storage friendly.Features:Water repellent and tear resistant nylon fabric.High quality zippers, easy zip and unzip.Two sides mesh pocket for water bottle or other acceories.Breathable and padded back panel.Adjustable sternum strap and shoulder strap.Survival whistle for emergency.Side and front adjustable straps for hanging trekking pole, tripod or anything you need.Bartack stitching reinforcement.Waist pack for cell phone, keys, small acceories.Alpenstock clasp and tent/sleeping bag straps.Adjustable waist and chest strap.D-ring for small acceories.Specification:Material: NylonColor: Army Green / Green / Dark Blue / Black / Orange (Optional)Capacity: 40L (all 6 pockets)Weight: Approx. 600g / 1.32lbSize: 52 * 33 * 20cm / 20.5 * 13 * 7.9inPackage Size: 52cm * 33 * 3cm / 20.5 * 13 * 1.2inPackage Weight: 610g / 1.3lbPackage List:1 * Backpack 40L Outdoor Bags Water Resistant Travel Backpack Camp Hike Laptop Daypack Trekking Climb Back Bags For Men WomenUSD 37.9 ~ USD40.39/piece 45L Outdoor Bags Large Capacity Waterproof Mountaineering Backpack Outdoor Breathable Shoulder Bag for Men and WomenUSD 35.31 ~ USD35.31/piece Large Capacity Waterproof Custom Logo 50L Backpack Lightweight Travel Sport Camping Hiking Backpack BagsUSD 42.7 ~ USD42.7/piece 50L Outdoor Backpack Hiking Waterproof Trekking Bag Man/Woman Outdoor Travel Rucksack Cycling Daypacks Cycling BackpacksUSD 40.08 ~ USD40.08/piece 60L Backpack with Rain Cover Outdoor Backpack New Waterproof Mountaineering Hiking Camping Backpack Travel DaypackUSD 60.43 ~ USD60.43/piece 60L Outdoor Sport Travel Daypack for Climbing Touring 60L Waterproof Lightweight Hiking Backpack with Rain CoverUSD 56.66 ~ USD56.66/piece Big Capacity Laptop Backpack Vintage Rucksack For Men And Women Travel School Backpack Canvas Travel BagsUSD 50.38 ~ USD50.38/piece Waterproof Climbing Backpack Rucksack 40L Outdoor Sports Bag Travel Backpack Camping Hiking Backpack Women Trekking Bag For MenUSD 21.43 ~ USD27.0/piece