Altura vortex 2 waterproof front rollthis super durable bag mounts to your frame and takes the hassle out of bringing your gear with you while you ride. Its ultra waterproof material combined with welded seams make it perfect for stashing your phone and wallet securely, without worrying about getting them wet. Finally, its 5 litre capacity can be adjusted with a roll closure system and adapted for straight or drop bars with the hook and loop wrap variable mounting system.features    fully waterproof to level ipx6    lightweight    welded seam construction dual ended roll closure hook loop wrap variable mounting system kross side release buckles top stash area waterproof volume pocket reflective detail light attachment points wedge spacers for wire protection hyperlon compression straps buy altura accessories from chain reaction cycles, the world's largest online bike store.