Altura:  A TOUGH 15L ROLL-TOP WATERPROOF PANNIER USING RIXEN KAUL KLICKFIX FITTINGS TO STAY IN PLACE The Altura Thunderstorm Adventure 15 Cycling Pannier provides a flexible capacity up to an impressive 15L with its roll-top closure allowing for compact capacity even when not full. Complete with a waterproof design and welded seam construction, to ensure the water stays out, this bag comes with Rixen & Kaul universal pannier rail fittings providing a durable and reliable mounting system to almost all racks. Simply click into place and ride. Includes a convenient welded front pocket that is ideal for storing easily accessible smaller items. A kickplate helps prevent wear and tear making this one robust adventure companion. With a reflective print you’ll remain seen in low light conditions.Please note the roll closure must be rolled 3 times to ensure a waterproof closure. Whilst the waterproof fabric and welded seams provide protection from the elements, this product is not submersible and should not be left sitting in water. We recommend valuables or electronics should be secured in a dry bag inside the main body of the bag for extra security. FEATURESWaterproof welded seam constructionRoll-top closureRixen Kaul universal rail pannier fittingsWaterproof front pocketReflective printAir release valveApprox 15L capacity