Description If you need a backpack that can handle work, travel, and school, this expandable men’s backpack is a solid choice. It’s waterproof, has plenty of space for your daily essentials, and fits a 15.6" laptop with ease. The built-in USB port makes charging on the go simple, and the clean, versatile design works just as well for business trips as it does for outdoor days. Features: Made of high-quality oxford and polyester fabric, water-resistant and tear-resistant. 36+5+L backpack offers large space to pack all your necessities and equipment. Spacious main compartment and numerous pockets keep your stuffs organized. Adjustable waist and chest straps for snug and comfortable fit. Bartack reinforcement for extra strength and durability. Specifications: Material: Oxford fabric + Polyester Color: Black / Gray Capacity: 27+11L Dimension: 45 * 30 * 20+8cm Weight: 1.18kg Package List: 1 * Backpack