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Are you a cycling enthusiast looking for a versatile and durable bike rack bag to carry your essentials while on the road? Look no further than the MOSISO Bike Rack Bag, a waterproof bicycle trunk pannier rear seat bag that offers ample storage space and convenient features for your cycling adventures.

Design and Capacity

The MOSISO Bike Rack Bag is designed with functionality and convenience in mind. Each side of the bag features a foldable pocket with a 6L capacity, perfect for storing your clothes, towels, and other belongings. This additional storage space allows you to carry everything you need for your cycling trips without compromising on comfort or convenience.

Material and Durability

Made of waterproof and durable polyester material, the MOSISO Bike Rack Bag is built to withstand the elements. Whether you’re cycling in the rain, mud, or dust, this bag will effectively protect your belongings from moisture and dirt. The bag is also equipped with four durable hook-and-loop fastener straps to ensure it stays securely attached to your bike’s backseat, even on rugged terrain.

Water Bottle Holder and Handle

One of the standout features of the MOSISO Bike Rack Bag is the water bottle pouch with an elastic band. This pouch can accommodate different sizes of water bottles or umbrellas, with a maximum diameter of 2.7 inches. The bag also includes a convenient handle design on the top, making it easy to carry the bag around when you’re not cycling.

Reflective Strips for Safety

To enhance your visibility and safety while cycling at night, the MOSISO Bike Rack Bag is equipped with reflective strips. These reflective strips reflect lights from vehicles and other sources, making you more visible to others on the road. This added safety feature ensures that your night rides are as safe as possible.


MOSISO stands behind the quality of its products, which is why the Bike Rack Bag comes with a 1-year warranty. This warranty provides you with peace of mind knowing that your purchase is protected against any defects or issues that may arise.


  • Ample storage capacity with foldable pockets on each side
  • Waterproof and durable polyester material for protection against the elements
  • Stable attachment to the bike with four hook-and-loop fastener straps
  • Convenient water bottle pouch with elastic band
  • Top handle design for easy carrying
  • Reflective strips for enhanced visibility and safety
  • 1-year warranty for added peace of mind


  • Some users may find the 6L capacity insufficient for their needs
  • Water bottle pouch may not accommodate larger bottles or items


In conclusion, the MOSISO Bike Rack Bag is a versatile and practical accessory for cyclists who need a reliable storage solution for their essentials. With its waterproof construction, ample storage capacity, and convenient features such as the water bottle holder and reflective strips, this bag is a must-have for any cycling enthusiast. Whether you’re embarking on a long-distance ride or a quick trip around town, the MOSISO Bike Rack Bag has you covered.

Overall, the MOSISO Bike Rack Bag offers a great combination of functionality, durability, and safety features, making it an excellent investment for any cyclist. With its 1-year warranty, you can purchase this bag with confidence knowing that it is backed by a reputable company that stands behind its products. So why wait? Upgrade your cycling experience with the MOSISO Bike Rack Bag today!

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