The altura speed led seatpack is based on the popular altura speed seatpack however this has more features which help you stand out from the crowd at night the light used in the saddle bag is the same one that altura use on their night vision jackets which has been a real hit on the market the bag also has high visibility night vision reflective detail on the back and side of the pack which helps you stand out when it comes to pulling out of junctions and riding over a crossroads overall this