Adding their distinctive flavour to bike luggage, Topos range of bike packing bags are considered designs to aid your trips and keep bits and bobs close to hand. The Bike Bag -Mountain will attach to the bars of most bikes and is constructed from a durable recycled nylon with a vinyl tarp liner making it completely waterproof, plus a wide gauge zip opening is water-resistant. Rounded out with a detachable and adjustable shoulder strap, for carrying off the bike if required.