ROCKBROS Hard - Shell Saddle Bag, Bicycle Bag, Seat Bag with Quick - Release Bracket, 0.4L, 8 Colors Product Details Brand: ROCKBROS Material: Polyester + PU Colors: Black / Pink / White / Light Gray / Yellow / Violet / Titanium / Light Green Capacity: approximately 0.4 liters Weight: approximately 110 grams Size: 13.3 * 9.6 * 10 cm Features: Stable bag body, classified storage, easy to carry, reflective logo, quick - release fastening, rubber zipper, shoulder strap attachment Special Features: High - Quality Hard - Shell Construction: The ROCKBROS bicycle saddle bag comes with a stable hard shell to protect your items from damage and deformation. No more crushing or deforming of your important belongings. Practical 0.4L Capacity: The seat bag has a suitable capacity of 0.4L, giving you enough space to store important items like keys, wallet, or snacks. Everything is stored safely and neatly. Internal Net Pocket: The bag has a practical internal net compartment that is divided into several layers. This allows you to easily sort and find your items without long - drawn - out searching. Large Zipper Opening: The saddle bag has a spacious zipper opening for easy access to your items. It's fast and convenient. Easy Installation & Additional Reflective Stripes: With the included quick - release frame, you can easily install the saddle bag on your bike. Reflective ROCKBROS emblems ensure better visibility in traffic. Additionally, you can mount your bike taillight on the back of the bag (taillight not included). More Details: a. Laminated water - repellent zipper that can prevent light rain. b. Straps are additionally reinforced to make them stronger. c. Seven colors to choose from. (Note: The black model has a carbon pattern, and the other colors are solid.