Cycle Saddle Rear Rack Pannier Bike Bag, 26 L Mountain Road MTB Trunk Shoulder Handbag 【High-quality Waterproof and Tear-resistant Fabric】The bicycle trunk bag is made of 900D waterproof coating fabric and PU. The laminated waterproof zipper design is not only tear-resistant and wear-resistant, but also prevents water splashing, light rain, dust, etc. from entering the bag. Exquisite workmanship, durable and firm. The best choice for commuting, cycling, outdoor, travel, hiking. 【26L Large Capacity Storage Space】Size: 14.6 x 6.9 x 6.1 inches. The main compartment is partitioned for storage, with 11L of storage space before expansion, and 26L of storage space after bilateral expansion. The total capacity of 26L is enough to store your phone, wallet, books, water bottles, tools, food and other daily necessities. The bike bag includes a main compartment, 2 expandable side pockets that can be freely partitioned according to your needs. 【Strong Reflective Strips and Suspendable Tail Lights Design】The strong reflective bands on both sides and back improve visibility when driving at night, making night travel safer and improving safety at night. The suspended backlit design (not including the rear) can alert pedestrians and vehicles at night, providing double protection and improved safety. 【Multifunctional Bicycle Rear Seat Bag】The bicycle frame can be fixed to the rear seat of the bicycle. The upper part of the bag has a handle so it can be used as a handbag. The travel bag comes with adjustable shoulder straps and can also be used as a shoulder strap bag or off-road bag and can be replaced at will. 【Tool-Free Bonding Installation】3 retaining straps, easy and quick installation of all types of bicycles with passenger chairs. Easy to install and uninstall in seconds, very simple. Compatible with most bicycle stands, such as regular bikes, mountain bikes, electric bikes, etc.