Feature 1,Water repellent and tear resistant nylon fabric. 2,High quality zippers, easy zip and unzip. 3,Two sides mesh pocket for water bottle or other accessories. The 40L Backpack was designed to offer the perfect balance between durability, size, lightweight, compact, and travel or 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 accessories. 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 accessories. Alpenstock clasp and tent or sleeping bag straps. Adjustable waist and chest strap. D-ring for small accessories. Specification: Material: Nylon Color: Green or Dark Blue or Black or Orange (Optional) Capacity: 40L (all 6 pockets) Weight: Approx. 600g or 1.32lb Size: 52 x 33 x 20cm or 20.5 x 13 x 7.9in Package Size: 52cm x 33 x 3cm or 20.5 x 13 x 1.2in Package Weight: 610g or 1.3lb Package List: 1 x Backpack Package List 1 x Backpack Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.