Soarpop Outdoor Lightweight Waterproof Backpack for Travelling Camping Hiking Running & Cycling Material: Water-proof nylon fabric with excellent technic. Durable and strong. Dimension: 17.7*11*5 inch. Large multi-compartment design and elasticized mesh bottle pockets at sides can carry all your necessaries. Very portable and convenient for assorting things. Along with back strap storage offer space for assorting things,bottom adjustable buckles belt is convenitent for you to assort sleeping bag or shoes ect. Provides reliable protection for a laptop with up to 14 inch. Strong buckle design makes it easy to protect your laptop. Airflow system and ergonomic design provide you a breathable and comportable feeling when you carry.