With its incredibly waterproof, reflective and durable properties, the Altura Thunderstorm City 20 Pannier allows you to commute with confidence.Fully waterproof, seam sealed construction to level IPX6 Roll top closure adds versatility to capacity and an extra level of securityEasily attaches & detaches with KLICKfix universal rail fittings Protective inner organiser and lower kickplate keeps items safe360-degree reflective details improve visibility in low light conditionsThe pannier is constructed from a two-tone polyester 600D with TPU coating giving it a certified waterproof rating of IPX6. This combined with a welded seam construction means you can ride to work on the wettest days of the year with confidence. The roll-top closure provides extra security against the elements, while giving you flexible carrying capacity - maxing out at 20 litres per pannier.Internally, the padded 13 laptop sleeve and protective kickplate will insulate your laptop from bumps and vibrations. Plus, it's easy to organise your valuables, thanks to a zipped pocket and key loop. Externally, reflective details and LED attachment points will help you stay visible on the road. Featuring the KLICKfix universal rail fitting system, it attaches easily to any bike rack, clicking on and off in seconds for high-speed commuting. The pannier weighs 850g and has a 10kg weight limit including pack and contents.