Bestore Sport School Oxford Backpack USPS first class international service for 7-12 BUSINESS DAYS delivery. Oxford fabric material is waterproof, durable and stop-rip. The zippered front pocket ( 11"*7" ) is ideal for quick put little stuff. Main compartment ( 18"*11.4" ), inside which there is a laptop compartment ( 11"*10.6" ) and a zippered pocket ( 6.3"*6.1" ). There are other two compartment ( 11"*15" and 11.4"*15.7" ). Muti-compartment organizer well all your stuff like laptop, tablet, document, books, pen case etc. Padded S-shaped shoulder strap and airflow padded back panel are designed to make your comfortable when carrying heavy duty.