Description of Timbuk2 Laptop Messenger Bag Medium Timbuk2's legendary Classic Messenger Bag features a built-in computer compartment to protect your precious laptop and a waterproof liner. Ideal for students on the go and bicycle commuters. Herringbone, the preppy zig zag print the British love to wear, has found it's way to your bag. Whether you travel by foot, plane, train or automobile, this is the perfect computer-friendly companion (fits 15" and 17" laptops), and a welcome alternative to the traditional corporate briefcase. The Grown Collection is Timbuk's vision to moving towards utilizing parts and materials that are better for the environment and less harmful to the folks who make them. Last year they took a big step by eliminating PVC from their entire line. These bags are another step in the right direction. On some of the key styles you’ll find the same fabric texture both inside and out. The bag maintains water resistance and durability without sacrificing style. Self fabric trim adds to the finished look. Fabric is made up of 66% hemp, 33% PET, and 1% mojo. Features: Vented molded back panel for comfort and ventilation Double padded, waterproof, rubberized bottom Timbuk2 Quality Guarantee Reflective tails and fancy buckles Luggage pass through for your wheelie companion Grab strap for easy lifting Exterior zipper compartment for rear computer access Padded, corduroy-lined laptop compartment Internal organizer pockets and red key tether Quick-adjust removable shoulder strap and improved cam Strap Pad included 18.75"W x 10.5"H x 7.75"D (47.62cm x 26.67cm x 19.68cm) 2.1lbs (.95kg)