Material and size: The laptop rucksack is made of high-quality Oxford fabric and offers a high and durable performance with minimal weight. For extra durability, the Oxford material is waterproof, tear-resistant and scratch-proof. Size: 35 x 20 x 50 cm. Capacity: 35 liters. USB port design: With an integrated USB charger on the outside and an integrated charging cable on the inside, this USB rucksack offers a more convenient way to charge your phone while on the go. Please note that this backpack is not self-powering; The USB charging port just provides easy access for charging. Backpack with unique design: A separate laptop compartment holds a 17.3 inch / 15.6 inch laptop as well as a 15 inch, 14 inch and 13 inch Macbook / laptop. A spacious compartment for everyday needs and technology / electronics accessories. A front compartment with lots of pockets, pen pockets and keyring hooks makes your items organized and easier to find. Ergonomic design: Two "" S "curve padded shoulder straps with an extra-thick and ultra-breathable design make the rucksack easy to carry and provide reinforcement. Wide range of uses and casual: The daypack is suitable for many occasions. Unisex for men and women. You can wear it to school or college, and when hiking, shopping, cycling, traveling, dating, etc. Product descriptions Color Name: A6-gray | Size Name: 15.6 inches Unisex backpack for men and women, multi-functional daypack for business, travel, shopping, camping, school, everyday life. USB port design: With an integrated USB charger on the outside and an integrated charging cable on the inside, this USB rucksack offers a more convenient way to charge your phone while on the go. Breathable and comfortable: The body side and the adjustable shoulder straps are equipped with a thick, breathable mesh padding, which offers your back a lot of comfort. The rucksack is a perfect gift for the hot summer. More details: Adjustable straps, audio pocket, bottle pocket, laptop compartment. High-quality fabric: Made from high density and water-repellent polyester fabric for long-lasting use. Specifications: Material: Oxford fabric and polyester lining. Weight: 0.66 kg. Size: 35 x 20 x 50 cm. Capacity: 35 liters. Use: Unisex. Package contents: 1 x backpack.