Make Axiom's Rackbook Pro Pannier your new commuting companion. It has a padded laptop sleeve, padded internal pockets for electronics, and plenty of other pockets to keep you organized. This durable, 600-denier polyester bag attaches quickly and easily to your rear rack (sold separately). The waterproof bottom panel adds protection on the bike and stability when off the bike. It also has a zippered hardware compartment that hides away the external rack attachment, so you can thrown on the shoulder strap and use it as a messenger bag.