Product Category: Backpack Product Name: Mountaineering bag hiking bag large capacity outdoor sports backpack Material: Nylon Color: black 40L, lake blue 40L, fruit green 40L, orange 40L, purple 40L, red 40L, sky blue 40L, dark blue 40L, black 50L, lake blue 50L, fruit green 50L, orange 50L, purple 50L, sky blue 50L, dark blue 50L, red 50L, lake blue 60L, dark blue 60L, red 60L, black 60L, purple 60L, sky blue 60L, orange 60L, fruit green 60L Capacity: 40-60L Weight: 1.2KG The dimensions are as follows: Small bag: The bag is 50 cm tall, 30 cm wide and 18 cm thick. Medium bag: bag height 55 cm, width 32 cm, thickness 20 cm. Large bag: The bag is 60 cm tall, 38 cm wide and 22 cm thick. Body structure: main zipper bag, front outer bag × 3, computer compartment, inner patch pocket × 4, pencil pocket × 3, side outer pocket × 2, and so on. Opening method: zipper Suitable for: unisex Features: 1. Fine textured nylon fabric, lightweight, tear resistant and wear resistant. 2. Ergonomic comfort carrying system, soft and decompression. 3. Quality accessories. 4. Waterproof fabric. Note: 1. Due to the display or shooting light, the picture will have a color difference with the actual object, please be aware. 2. Manual measurement, there will be an error of 1-3cm, please know.