This spacious saddle bag is perfectly suited for a change of clothes and other equipment. It can provide a comfortable ride for those long miles.Features: Constructed of highly water-resistant material to keep your items dry. Roll-top closure lets you adjust the storage volume to your need. Exterior straps keep everything securely in place. Elastic cords outside the bag for quick fixing of light gears. Adjustable seats post attachment straps for easy mounting or removal. Streamlined design to carry gear without the need for a rear rack. Specifications: Material: 500D PVC Color: black, yellow, grey (optional) Capacity: 10L / 13L (optional) 10L: Item size: 450 * 180 * 150mm / 17.7 * 7.1 * 5.9in Item weight: 640g / 1.4lb Package weight: 660g / 1.5lb 13L: Item size: 500 * 180 * 150mm / 19.7 * 7.1 * 5.9in Item weight: 730g / 1.6lb Package weight: 750g / 1.7lb Package size: 250 * 100 * 50mm / 9.8 * 3.9 * 2.0inPacking List: 1 * Waterproof Bicycle Saddle Bag