The best waterproof motorcycle tail bag depends on how much you carry and how much rain protection you need. The KEMIMOTO 22–34L bag suits riders who want expandable storage and a rain cover; the KEMIMOTO dry bag is aimed at touring and adventure riders who prioritize sealed protection. The Nelson-Rigg Hurricane is another option for riders seeking welded seams, while the Rhinowalk offers modular storage. For a mid-size expandable bag with backpack use, consider the MOTOCENTRIC.
| Bag | Best for | Capacity or protection detail |
|---|---|---|
| KEMIMOTO 22–34L | Expandable everyday storage | Rain cover included |
| KEMIMOTO Dry Bag | Touring and dusty conditions | 25L option; IPX6 welded seams |
| Nelson-Rigg Hurricane | Wet-weather rides | Tarpaulin PVC and heat-welded seams |
| Rhinowalk 30L | Modular luggage setups | Waterproof fabric and sealed construction |
| MOTOCENTRIC 25–38L | Expandable storage with backpack use | Waterproof Oxford fabric |
KEMIMOTO 22–34L Expandable Tail Bag
This KEMIMOTO bag expands from 22 to 34 liters, offering extra room when a short ride turns into an overnight trip. Its listed dimensions are 14.6 by 12.2 inches, with a height of 7.9 inches in standard mode and 11.8 inches expanded. The product description says it can hold clothing, shoes, helmets, tablets, and meals.
Best for: Riders who want adjustable capacity and a bag that can also be carried as a backpack or handbag. It was selected for its broad storage range, six mounting straps, and included rain cover. Its 1680D leather-fiber material is described as water- and tear-resistant.
Limitation: The listing says it is not for dirt bikes or bicycles and recommends a rear rack for stable use. A rain cover is included, so the description does not establish that the bag itself is fully waterproof without it.
KEMIMOTO Waterproof Dry Bag
This soft duffel-style tail bag is listed in 25L, 40L, and 65L capacities. The product features describe the 25L version as having IPX6 welded seams, along with fine stitching and waterproof, tear-resistant material. Multiple compartments and mesh pockets help separate gear for longer rides.
Best for: Touring, camping, or adventure riders who need substantial luggage and want waterproof and dustproof protection. It stands out among these picks for its stated welded-seam construction and range of capacity options. The listing also describes use for boating, workouts, and family trips.
Limitation: The specific IPX6 seam claim is given for the 25L bag. Confirm the selected size and its details before buying if that protection level is a deciding factor.
Nelson-Rigg Hurricane Dual Sport Tail Bag
The Nelson-Rigg Hurricane is made from Tarpaulin PVC and uses electronically heat-welded seams to help keep contents dry. A waterproof flap covers water-resistant zippers and is intended to help keep dust and dirt away from them. Clear mesh pockets under the lid provide a place for smaller items.
Best for: Riders who prioritize weather-focused construction and want accessible organization for compact essentials. The welded seams and protective flap make this a strong choice for wet or dusty rides. The product listing also states a lifetime warranty against defects in materials and workmanship.
Limitation: The supplied product details do not state its capacity or dimensions. Check the bag’s size against your luggage needs before choosing it for a multi-day trip.
Rhinowalk Modular Waterproof Tail Bag
This Rhinowalk rear carrier is listed as a 30L bag and uses waterproof, tear-resistant PVC-coated polyester. The product description says its body connections use a seamless sealing process. Its modular design uses buckles and hooks to connect bags into larger combinations, and the listing specifies two shoulder straps for the 15L and 30L versions.
Best for: Riders who want luggage that can be combined with additional bags rather than relying on one fixed setup. It was selected for its stated waterproof construction, expandable height, and modular connection system.
Limitation: The dimensions are listed as 12.2 by 8.7 by 20.9 or 28.7 inches, but the description does not clearly explain which configuration each height represents. Verify fit and mounting arrangements before purchase.
MOTOCENTRIC 25–38L Waterproof Tail Bag
The MOTOCENTRIC bag expands from 25 to 38 liters and is made from Oxford fabric with waterproof protection. Its dual-use design allows it to function as a motorcycle tail bag or backpack. The listed capacity makes it a larger option for carrying a helmet, riding gear, and other motorcycle essentials.
Best for: Riders who want more room than a compact daily bag provides and value the option to carry luggage off the motorcycle. It was selected for its expandable range and convertible design.
Limitation: The product information does not specify welded seams, a separate rain cover, or an IPX rating. Choose another option if you need one of those clearly stated protection details.
Buying Guide: How to Choose a Waterproof Motorcycle Tail Bag
How much capacity do you need?
For daily essentials, a compact bag may be easier to secure and carry. Expandable bags such as the KEMIMOTO 22–34L and MOTOCENTRIC 25–38L provide extra space when needed. For touring or camping gear, compare the KEMIMOTO dry bag’s 25L, 40L, and 65L options. Check the actual dimensions as well as the liter capacity, since shape affects what will fit.
Does “waterproof” mean the same thing for every bag?
No. Some listings describe waterproof fabric or construction, while others add a rain cover or specify welded seams. The KEMIMOTO 22–34L includes a rain cover; the KEMIMOTO dry bag lists IPX6 welded seams for its 25L version. The Nelson-Rigg and Rhinowalk descriptions also specify sealed seams or connections. For prolonged rain, review the exact closure and protection details for the size you plan to buy.
Will the bag fit your motorcycle?
Compare the bag’s footprint with the passenger seat or rear rack, then review its strap arrangement. A rack can improve stability, but mounting requirements vary. Check any stated exclusions: for example, the KEMIMOTO 22–34L listing says it is not intended for dirt bikes or bicycles. Secure the bag according to its instructions and confirm it cannot interfere with controls, exhaust, or the rider.
Do you need a backpack or modular design?
A shoulder strap or backpack configuration is useful when carrying luggage after parking. A modular bag can suit riders who want to combine storage units, while a straightforward tail bag may be simpler for everyday use. Consider whether carrying comfort, quick access, or expandable capacity matters most for your typical ride.
Frequently Asked Questions
Can a motorcycle tail bag keep belongings dry in heavy rain?
It depends on its construction and closures. Look for details such as welded seams, sealed connections, waterproof materials, and included rain covers. No single label guarantees identical performance across every bag.
Is a rain cover better than waterproof fabric?
They are different forms of protection. A cover adds an outer barrier, while waterproof fabric and sealed seams protect the bag itself. Check which features the specific product includes.
What size tail bag is suitable for commuting?
A smaller bag is often sufficient for daily essentials, while an expandable model offers flexibility for extra clothing or gear. Match capacity to your usual load and available mounting space.
Can a tail bag be used as a backpack?
Some models are designed for dual use. The KEMIMOTO 22–34L and MOTOCENTRIC listings describe backpack use; check the included straps and carrying configuration for the model you choose.