Features: brand new and high quality Roll up deign with waterproof material, excellent sealing performance, keep your valuables dry. 11L large capacity can meet your requirment in different occasions,and high elastic bungee cord for attaching some wet raincoats or a coat. Simple to install and quick to remove with the help of strong adhesive fixing tape and buckle. Sturdy buckle for added security and stabilization, prevent items from slipping,and reflective design improves visibility and safety at night. Wide Application: Can be installed on mountain bikes, folding bikes, road bikes. Specifications: Material: PU. Color: Black. Capacity: 11 L Bag Size: 47 x 17 x 14cm / 18.5 x6.69x 5.51in 5.5in Bag Weight: 380g / 13.4oz Package Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Bike Saddle Bag.