Come and Check Our Promo Solutions.This durable waterproof backpack is made of oxford fabric, comes with a lock to keep your valuables safe and can fit up to a 15.6" laptop. The comfortable airflow back design with thick but soft multi-panel ventilated padding gives you maximum support. Breathable and adjustable shoulder straps relieve the stress of the shoulder. Great for school , work ,travel and so on. Pls check inventory and detailed info with us before placing your orders.