How long have you heard safety first Forever, right Well you're still alive, so it works. Safety is the backbone of the Ortlieb Velocity Hi Vis Backpack thanks to the high visibility offered from the interwoven high luminosity yarn. Basically the whole bag is one big reflector in each color way. The bag stashes 20L worth of your belongings and even has a detachable zippered pocket for convenience. The Ortlieb Velocity Hi Vis Backpack has an international protection rating of 64 meaning it is tough when it comes to protecting your stuff. The front design makes it easy to attach a light or your helmet with ease because, safety first.