This item is unused! I bought it, but it didn't fit my bike, so I'm selling it. Carbon waterproof material saddle bag with bottle holder, double-sided zipper design for item classification and protection. - Brand: ROCKBROS - Type: Saddle bag - Features: With bottle holder - Material: Carbon waterproof PU and rubber - Design: Double-sided zipper design - Uses: Item classification and protection Thank you for looking.