Full Details from Amazon.com : http://www.amazon.com/gp/product/B00MIQL8H8?tag=onigi-20

Backpacks for Schools - High Sierra Riprap Laptop Backpack (Blue)

Fits 15in Laptop 16in x 11in x 16in Max Size
MP3 Player Pocket
3 Big Compartments
Mesh padded back panel wicks moisture and provides superior comfort
Integrated shoulder strap cell phonemedia pocket