• LARGE CAPACITY: This rear bike rack bag measures 37*17*16cm/14.6*6.7*6.3"(LxWxH), about 9 liters large capacity enough to store Ebike battery, bike tools, bike tire pump, cable lock, clothes, wallet, power bank and daily necessities
• CONVENIENT: ROCKBROS bike trunk bag has two compartments that can be removed or inserted, which makes all stored items are well organized. Multi pockets outside and inside help to collect small essential items firmly, perfect for daily or travel riding
• WATERPROOF & REFLECTIVE: Our rear bike saddle bag is made of highly rated tear and abrasion-resistant polyester and PU material, which is water-resistant and easy to clean. Come with a green rain cover which can resistant water and rain effectively. Reflective straps on the bike luggage bags around provide a nice warning effect at night
• MULTI-FUNCTIONAL: Not only a bike pannier, but also a shoulder bag, with a removable shoulder strap, you can take it anywhere. Detachable shoulder strap is adjustable from 25.2/64cm to 48.6"/124cm. Also, it comes with a handle as a handbag
• EASY AND QUICK INSTALLATION: The bike bag for rear rack has 4 adjustable hook and loop fastener straps, easy to install and remove in seconds, suitable for most bicycle racks such as mountain bikes, road bikes, e-bikes, commuters