Sydney Paige Raleigh 18-Inch Water Resistant Laptop Backpack Fits 15-inch Laptops (Silver Lining) BUY ONE / GIVE ONE . . . for every bag purchased, a matching backpack filled with school supplies is donated to a student in need Durable bag built to last the school year with water resistant 600-denier polyester exterior / 210-denier polyester interior, reinforced bottom, padded laptop sleeve, and reflective piping Large capacity 18-inch backpack with double-zippered main compartment to hold up to a 15-inch laptop, folders, binders, notebooks and books, secondary double-zippered compartment to hold lunch bag, notebooks, folders, binders, pens, pencils, markers, index cards, rulers, etc. Plenty of space to organize belongings with padded laptop sleeve, easy to open zippers, expandable side pouches for bottles, 2 front zip accessory pockets, external pocket for phone/music player with earbud port, key fob, ID holder, pen pockets and a padded top loop for storage Lightweight design with airflow material, padded backing and shoulder straps and adjustable chest strap make this backpack ideal for teens and adults, grades 6-12 and college, whether going to school, work, visiting friends or travel as a carry-on bag, for day trips, or overnight adventures