•The water-repellent fabric ensures a secure and long-lasting usage •18L large capacity, it can store 15.6 inch laptop, clothes, tablet, phone, power banks, etc. •Designed with a front zipper pocket for small items, cards and keys •The side pockets offer additional storage for your umbrella or water bottle •The band on the back can attach on the draw-bar of your suitcase, very convenient •Padded mesh back panel and shoulder straps help to reduce bearing load, making your trip more comfortable •Perfect for business, traveling, school, camping, and other outdoor activities Specifications: •Outer Material: 900D Oxford Cloth •Weight: about 0.55kg •Capacity: 18L •Dimension: 280 x 150 x 430mm Package included: •1 x Backpack •Not included other items