KEMIMOTO Motorcycle Tail Bag 22–30L Expandable Waterproof Rear Seat Bag with Rain Cover and Convertible Backpack Straps

The KEMIMOTO Motorcycle Tail Bag is a 22–30L expandable, waterproof rear seat bag that converts into a backpack or shoulder bag and includes a rain cover for secure, all-weather motorcycle storage.

This tail bag is built for riders who need reliable, weatherproof cargo space without sacrificing quick access or versatility. Constructed from PVC waterproof fabric with sealed zippers and a stowable rain cover, it protects gear from sudden showers while the expandable base accommodates a helmet or extra layers. Multiple attachment points and conversion straps make it easy to switch between secure tail-mount and carry modes for off-bike use.

How much will the bag hold when I expand it?

Unexpanded the bag offers a compact 22 liters, and when you open the expandable base it increases to about 30 liters—enough for a full-face helmet or several layers and accessories. Internal mesh pockets keep small items organized so you can extract what you need quickly.

• Base capacity: 22L compact, 30L expanded
• Holds one full-face helmet or multiple clothing layers
• Internal partitioned mesh pockets for organization
• Elastic external net for wet items or extra storage

Will this tail bag stay secure on bumpy roads?

The bag uses four quick-release adjustable rear straps that latch to solid points under the seat or tail rack, keeping it snug on varied surfaces. For additional stability, tightening the straps and routing them through anchor points reduces shifting even on uneven roads.

• Four adjustable quick-release rear seat straps for firm mounting
• Low-profile shape minimizes wind lift and movement
• Buckle locking device for added security once strapped
• Compatible with most rear seats and tail racks

How does it protect my gear from rain and road spray?

Exterior PVC waterproof material plus a waterproof main zipper creates a first line of defense against moisture and spray. A zip-stashed rain cover adds an extra barrier for heavy downpours; together they provide layered protection without adding much bulk.

• PVC waterproof fabric on body for durable water resistance
• Waterproof zipper reduces seam penetration
• Included rain cover for severe weather protection
• Elastic net and reinforced seams shed water and debris

Can I carry the bag off the bike?

Yes—the bag converts into multiple carry styles using two adjustable shoulder straps supplied with the unit. Clip on the straps to transform it into a backpack, shoulder bag, or handheld carry, making the bag useful for errands, hikes, or short walks away from the motorcycle.

• Two adjustable quick-release shoulder straps included
• Converts to backpack, shoulder bag, or handbag easily
• Top handle allows quick grab-and-go convenience
• Reflective strip improves visibility when carried at night

Who this is for: Riders who need a durable, weatherproof luggage solution that adapts to short commutes and longer trips will appreciate the KEMIMOTO tail bag. It suits motorcyclists who carry a helmet and extra layers, commuters who want quick off-bike portability, and adventure riders who need organized storage with dependable waterproofing and easy mounting.