90% terylene oxford lawn??10% nylon.Water proof and sturdy.</br>External Dimension: 12" x 20"H x 5"W. Weight:1.5 lbs/0.68 kg.</br>Multiple pockets keep your items well organized and easy to access:zippered main compartment can hold up to 15 inch laptop. Front zippered pocket can hold your 8 inch iPad/kindle and other small gears in easy reach.</br>External USB with built-in charging cable provides a convinent charging of your electronic device anywhere. Padded back panel and adjustable "S" curve shoulder straps for ultra comfort.</br>Warranty: 1-YEAR WARRANTY(Replacement or Refund) against manufacture defects. Any problems with the bag?? feel free to contact us?? we will be more than glad to help.</br></br>Product Description</br></br><p><b>Features: </b><br> - Si