The Blackburn Grid Large Seat Bag is a great choice for gravel riders or anyone who wants to take a long ride and bring some extra gear. This bag easily tucks away under your saddle so as to not hinder aero performance. It is made with an incredibly strong combination of nylon ripstop material and polyester. The material is also reflective to keep riders visible at night. There is even a tail light clip so you can add a light to the mix. Inside the bag, there is a pocket with a removable divider for easy organization. The pocket is big enough to fit things like a jacket, tubes, and tools. Its padded structure keeps all these items safe as you ride. The Blackburn Grid Seat Bag is a practical way to handle your extra cargo.