Product Features: Side-entry access removable computer sleeve that stores and protects laptops up to 15.4". Features organizer section for PDA, cell phone, pens, business cards, etc., an MP3 or CD layer pouch complete with slit for ear phones, and side zipper pockets for small miscellaneous items. Zippered fan-file compartment. Air-lift mesh padding against your back to keep you dry and comfortable and ergonomic adjustable contour backpack straps with secure chest strap. Specifications: Nylon Size: 13" x 8" x 17"