This backpack is made of 100% Polyester with 1200 Denier DWR Polyester and Rain Defender finish for water resistance. It has a large main compartment with a 38cm laptop and tablet sleeve front zippered organization compartment fleece-lined eyewear compartment and two mesh side pockets. The padded air mesh back panel provides comfort during extended use. The backpack also features a Carhartt label sewn on the pocket., 100% Polyester. 1200 Denier DWR Polyester., Rain Defender - Durable water repellent finish. Large main compartment with dedicated 38cm laptop sleeve and tablet sleeve., Front zippered organization compartment. fleece lined eyewear compartment., Two mesh side pockets. Padded air mesh back panel., Carhartt label sewn on pocket. Measurements: w x h x d 11.5x18x8 inches/29x46x20cm.