600 denier polyester. Premium coated material provides water and abrasion protection. Padded and plush laptop sleeve and organizer. Ergonomic S-curve padded air mesh shoulder straps with sternum strap. Fully padded air mesh back panel. Dual water bottle pockets. Tricot lined loft pocket. External accessory pocket. Padded haul handle. 18. 89 x 12.20 x 7.08 in. Black.