Chrome's Knurled Welded Gravel Seat Bag was built to carry essential tools for longer rides - going farther means more stuff: multiple tubes, small chain breaker, multitool, cartridges, patch kits... you get the idea. The Gravel Seat Bag packs up all of that. What’s even better? The unique cinching system can securely carry larger loads that extend beyond the seat. Like the rest of Chrome's Knurled Welded series, they made the Gravel Seat Bag out of a 600 Denier poly with a waterproof PU coating and then welded the seams with their patented Knurled Welded design to make the only welded bag construction that can live up to their standards. Guaranteed for life.