The urban bike pannier. City dwellers who commute by bike daily will appreciate the padded laptop compartment for a 16-inch MacBook or a 15.6-inch laptop, as well as the additional pocket for an 11-inch tablet. Attaching the pannier to an 8–16 mm bike rack is easy, and once mounted, the bike bag can be put on and taken off in just a few seconds. The attachment loops for a bike light and the reflective elements ensure that you are highly visible during nighttime rides. These panniers are also certified on the internationally recognized IP waterproofing scale with an IPX4 rating. This means they are highly water-repellent in heavy rain and keep the contents dry.