Greenroom136 Rainmaker Urban Backpack Medium Black Main compartment consist of 2 see-throughzipper mesh pockets forrandom bits; with multiple pockets for gadgets and document. Including a concealed secret pocket at the back support panel. Shoulder straps are eva packed and enforced with industrial grade 2" safety belts with load lifters. Featuring side compression belts to better secure your carry or to strap up a tripod. Rainmaker medium measures to 11 x 16 x 8 inches and large 12 x 17 x 8 inches. Tsa friendly, clam shell stylelaptop pouch with plush eva padding and corduroy lining. Will carry most 13 laptop measuring up to 39cm x 29cm x 3cm. Made with tear and weather resistant 1000 denier cordura and 420 denier oxford nylon fabric. Ever durable ykk zips, buckles and velcro enclosures. Super tough 2 industrial grade safety belts and polyester webbing. Premium grade corduroy for laptop pouch lining and eva closed cell foams for paddings. Designed and hand made at our very own independent micro workshop. Nylon/polyester/eva close cell foam/corduroy/vinyl