Ebike Rear Pannier Bag, Waterproof Battery Storage Bag for Camping or Long-Distance Biking, Expandable Rack Bags Shoulder Bag

High Quality & Hard-Shell Waterproof: Made of rainproof EVA hard shell and polyester design, durable, it is tear, abrasion, and heat resistant to protect your battery from drops and impacts. Double protection for your outdoor rides in rainy weather as well as tough outdoor conditions, so you don't have to worry about rain or splashes damaging the battery or your belongs.

10-20L Expandable Capacity: With a foldable/expandable design that allows for flexible capacity changes, this bike trunk bag has a maximum capacity of 20L. The Bike Rear Pannier Bag can be used to carry an ebike battery, clothes, pumps, flashlights, etc. This storage bag includes 2 side compartment pockets, enough to carry on essentials for a long time biking, and help to get your essentials well organized.

Safe & Secure: The straps securing system fixed the bicycle panniers on the rack without sliding off, don't worry about the bag shaking when riding. Suitable for most bicycle racks on the market, providing a stable and secure ride.

Reflective Strip & Side Water Bottle Bag: The reflective webbing and LOGO design increases nighttime visibility and the hanger on the strip can hold a taillight which can also enhance cycling safety at night or in low light situations. Side water bottle bag, it is convenient for you to drink water at any time during the ride.(Remember to tighten the shrink cord when you put the kettle back)

Versatile 3-in-1 Design: Experience ultimate versatility with a handle and adjustable shoulder strap, the rack pannier bag is not only used for bicycle cycling but also can be easily transformed into a handbag, mountain climbing bag, and shoulder bag to suit any adventure or occasion.

SPECS
Material: EVA+polyester
Size:
Unexpanded: 18.11"*9.06"*10.63" / 46*23*27cm
After expansion: 18.11"*11.42"*19.29" / 46*29*49cm
Capacity: 10L (Unexpanded) / 20L (After expansion)
Waterproof: Daily Waterproof