1、The surface of the bag body is also coated with colored reflective coating, which is safer for night Cycle. 2、The tail lamp(not included) can be installed at the rear of the bag, making it safer to ride at night. 3、Made of waterproof material a waterproof zipper, making it suitable for daily use in light rain. 4、1.2L large capacity ample for your Cycle needs. 5、Light weight and compact size, no increase in Cycle burden. 6、Built in mesh pockets for organized storage. 7、Bucket design, easy to install and remove. This bag is a Cycle storage bag installed on the tube of the bicycle seats. It is easy to install and remove. It is dailylife waterproof and light weight design, practical, safer and convenient for storing and taking items, and will not affect Cycle. Features: The surface of the bag body is also coated with colored reflective coating, which is safer for night Cycle. The tail lamp(not included) can be installed at the rear of the bag, making it safer to ride at night. Made of waterproof material a waterproof zipper, making it suitable for daily use in light rain. 1.2L large capacity ample for your Cycle needs. Light weight and compact size, no increase in Cycle burden. Built in mesh pockets for organized storage. Bucket design, easy to install and remove. Specifications: Color: grey, green, blue, orange (optional) Material: cotton+cloth Capacity: 1.2L Item size: 210 * 100 * 90mm / 8.3 * 3.9 * 3.5in Item weight: 100g / 3.5ounce Package size: 210 * 105 * 90mm / 8.3 * 4.1 * 3.5in Package weight: 116g / 4.1ounce Packing List: 1 * Cycle Bag 1 * Cycle Bag