This 13" x 18" x 6.25" pack is made of 600 Denier polyester with metallic Dobby elements. It features a sizable main partition, a zippered front pocket, and dual mesh side pockets for water bottles and other tall items. Music lovers will appreciate the iPod port --- just thread your earbuds through and you can listen without getting tangled up in the cord. This pack is perfect for students, commuters, and travelers of all ages. Available in red and black, just add your organizational or company logo or message to create a great branded promotion for educational conferences, technology expos and other events.