1、Through the simple four points adjustable belt installation, it can tightly fit the position of the motorcycle rearseat, suitable for most motorcycle models. 2、Fine quality locking function buckle: prevents loose webbing on bumpy roads. 3、The main material is made of waterproof and tear resistant mesh fabric. This motorcycle bag is with wide applications, suitable for most motorcycles. It is wear-resistant, expandable large capacity suitable for medium and long distance motorcycle travel storage. Features: Through the simple four points adjustable belt installation, it can tightly fit the position of the motorcycle rearseat, suitable for most motorcycle models. Fine quality locking function buckle: prevents loose webbing on bumpy roads. The main material is made of waterproof and tear resistant mesh fabric. The surface and bottom are covered with waterproof adhesive layers, which are wear-resistant and easy to wash. Comes with a shoulder belt and can also be used as a shoulder bag. Equipped with a raincover, protects the items in the bag from getting wet on rainy days. Antislip and wear-resistant leather material at the bottom, ensuring both antislip and durability. The reflective pattern design of the bag makes night riding safer. Specifications: Type: MTR4045BK, MT4060BK, MT4080BK (optional) Main color: black Main material: polyester+mesh+leather Capacity: MTR4045BK: 33-45L MT4060BK: 40-60L MT4080: 60-80L Extension belt length: 0.96m Fixing belt length: 0.55m Item size(open): MTR4045BK: 400 * 300 * 270mm / 15.7 * 11.8 * 10.6in MT4060BK: 440 * 315 * 315mm / 17.3 * 12.4 * 12.4in MT4080: 500 * 360 * 330mm / 19.7 * 14.2 * 13.0in Item size(expand): MTR4045BK: 550 * 310 * 270mm / 21.7 * 12.2 * 10.6in MT4060BK: 620 * 315 * 315mm / 24.4 * 12.4 * 12.4in MT4080: 680 * 360 * 330mm / 26.8 * 14.2 * 13.0in Item weight: MTR4045BK: 2530g / 5.6lb MT4060BK: 2840g / 6.3lb MT4080: 3480g / 7.7lb Package size: MTR4045BK: 365 * 315 * 125mm / 14.4 * 12.4 * 4.9in MT4060BK: 380 * 330 * 140mm / 15.0 * 13.0 * 5.5in MT4080: 410 * 350 * 115mm / 16.1 * 13.8 * 4.5in Package weight: MTR4045BK: 2600g / 5.7lb MT4060BK: 2900g / 6.4lb MT4080: 3500g / 7.7lb Packing List: 1 * Motorcycle Rearseat Bag 1 * Shoulder Belts 2 * Extension Belts 4 * Fixing Belts 1 * RainCover 1 * Motorcycle Rearseat Bag 1 * Shoulder Belts 2 * Extension Belts 4 * Fixing Belts 1 * RainCover