Never used This 35L work backpack is tough enough for the jobsite and spacious enough for a weekend trip. It's designed with several pockets on the inside and out, including a padded sleeve for laptops up to 17 inches. The bag is made of heavy-duty material that sheds light rain, with a reinforced base for extra strength. Features 1200-denier Polyester with Rain Defender™ durable water repellent and Duravax™ base Padded air mesh back panel and contour fit shoulder straps with FastDry™ technology wicks away sweat for comfort Dedicated padded compartment stores up to a 17-inch laptop 2 Large main compartments with ample space for gear and additional organization pockets 2 Side zippered pockets for cords or water bottle Fleece lined eyewear compartment Top compartment with dedicated pocket for power pack and cord port Front zippered organization compartment Dimensions: 16" X 18.5" X 12.5"