Two Wheel Gear - Pannier Backpack Convertible - 2 in 1 Commuting and Travel Bike Bag Pannier & Backpack - Attaches to bike rack or quickly converts to technical backpack Waterproof Materials - Made of 600D TPE coated polyester, includes rain cover Organization - 15 inch laptop sleeve, phone pocket, U-Lock storage, bottle pockets, pen holders, internal mesh zip pockets Commuter Focused - Unzips fully, clip for lights, top handle, key leash, adjustable sternum strap Ideal For - Biking to work, commuting, travel, campus, urban and outdoors