Answering the need for dry gear on two-wheeled trips, this guide highlights five reliable waterproof motorcycle tail bags. Each option suits different riders—city commuters, weekend wanderers, and long-haul travelers alike. The featured bags prioritize weatherproofing, capacity, and secure mounting so you can ride with confidence in rain, splashes, or spray. Use this quick reference to compare size, materials, and mounting styles before you buy.
Buying Summary Table
| Product | Capacity (L) | Best For | Key Benefit | Limitations |
|---|---|---|---|---|
| KEMIMOTO 22-34L | 22-34 | Daily riders with helmet storage | Expandable, rain cover, universal straps | Rear rack suggested |
| MOSISO 10L | 10 | Light, compact rides | Versatile carry options | Smaller capacity |
| Rhinowalk 30-80L | 30-80 | Travelers needing large cargo | Modular, highly expandable | Heavier when full |
| Nelson-Rigg CL-1060-S2 | Varies, semi-rigid | Durable, long-term use | UltraMax fabric, quick install | Higher price point |
| HHLUPUP 38L | 38 | Helmet plus gear | High capacity with rain cover | Bulkier on smaller bikes |
KEMIMOTO Dual-Use Tail Bag With Rain Cover
The KEMIMOTO 22-34L tail bag is designed for riders who want expandable storage with weather protection. It has a standard 14.6″ L x 12.2″ W x 7.9″ H size, expanding to 34 liters to fit clothes, shoes, helmets, tablets, and meals. Best for riders with rear racks who need flexible capacity and occasional backpack use. Its 1680D exterior and included rain cover resist rain and tearing, keeping contents dry. A rear rack is suggested for stability on some bikes.
Best for: daily commuters or weekend travelers who value expandability and a rain-ready exterior. Choose this if you want a bag that can switch from tail bag to shoulder bag with minimal fuss.
Caution: Not ideal for dirt bikes or bicycles, and models without a rear rack may have limited compatibility.
MOSISO Waterproof Tail Bag 10L
The MOSISO 10L bag emphasizes compact versatility for riders who want a lightweight option without sacrificing weatherproofing. Its 12.6 x 10.24 x 7.09 inches footprint makes it easy to mount on most motorcycles. The waterproof PU leather exterior helps prevent rain, mud, and dust from infiltrating the main compartment. It can function as a tail bag, shoulder bag, or handbag, offering flexible use for off-bike commutes or post-ride errands.
Best for: riders who prioritize light weight and multi-use functionality in a compact form. Choose this if you want a simple, everyday bag that keeps essentials dry without bulk.
Caution: 10L capacity is limited for larger trips or helmet storage; plan around day trips or minimal gear.
Rhinowalk 30L-80L Expandable Tail Bag
Rhinowalk’s 30L-80L expandable system targets riders who want modular capacity and a rain-ready shell. The bag’s waterproof PVC-coated fabric, sealed seams, and bottom wear-resistance help protect cargo across all weather. Modular design allows 2-in-1, 3-in-1, or 4-in-1 configurations by combining multiple bags via buckles and hooks. It also includes a shoulder strap in smaller versions and added versatility for long trips or day runs.
Best for: travelers who need large, adaptive cargo space and the option to use multiple bags together for long journeys. Choose this if you value expandability and modular stacking over a compact single-bag solution.
Caution: The larger configurations can be heavier and bulkier, potentially affecting handling on smaller motorcycles.
Nelson-Rigg CL-1060-S2 Commuter Tail Bag
The Nelson-Rigg CL-1060-S2 is a semi-rigid, commuter-ready tail bag designed for quick installs on most tail sections with four adjustable quick-release straps. The UltraMax fabric promises colorfastness and durability against sun exposure, while the semi-rigid walls help maintain shape and protect contents during transit. This bag suits riders who value a sturdy, long-lasting option with straightforward mounting.
Best for: riders who want a durable, low-maintenance bag that maintains its shape and cleans easily. Choose this if you prioritize durability and a simple installation process.
Caution: The price point may be higher than similarly sized bags, though the fabric and construction aim to justify it over time.
HHLUPUP 38L Waterproof Tail Bag Helmet Backpack
The HHLUPUP bag expands to 38 liters, offering ample space for clothing, a helmet, and daily essentials. It provides a rainproof exterior and includes a rain cover for added protection in wet conditions. The design supports multiple carrying styles, including backpack and shoulder bag modes for off-bike use. The extra capacity makes it a strong choice for day trips or longer rides where helmet storage is important.
Best for: riders who need helmet-capable storage and major expansion for gear. Choose this if your trips include helmet transport and you want versatile carrying options.
Caution: The bag’s large size may feel bulky on compact bikes or sport models with limited rear rack space.
Buying Guide: Key Considerations For Your Waterproof Tail Bag
- Capacity and expandability: Determine your typical trip length. Do you need a compact 10L bag or an expandable 30-80L system?
- Material and waterproofing: Look for waterproof fabrics (PVC-coated, tarpaulin) and sealed seams. A rain cover is an added safeguard.
- Mounting compatibility: Check rear rack compatibility and whether the bag supports universal strap mounting or dedicated brackets for your bike.
- Durability versus weight: Semi-rigid designs protect contents but add weight. Consider how much you carry and how it affects handling.
- Versatility: If you want off-bike use, consider bags that convert to backpacks or shoulder bags for easy transport.
- Maintenance and cleaning: Materials that resist mud and are easy to wipe down prolong life and appearance.
- Expansion vs. fixed capacity: Decide if you prefer a single large bag or a modular, stackable setup for different trips.
Frequently Asked Questions
- What should I look for in a waterproof motorcycle tail bag?
- Is 10 liters enough for daily commuting?
- Do I need a rain cover even if the fabric is waterproof?
- Can I carry a helmet inside a tail bag?
- Are expandable tail bags stable on bikes without a rear rack?
Focus on waterproof fabric, sealed seams, a rain cover, reliable mounting, and a size that fits your bike’s rack and a typical load.
Often yes for daily essentials, but if you regularly carry a helmet or extra gear, a larger expandable option is better.
Yes. A dedicated rain cover adds an extra layer of protection against heavy downpours and splash.
Some bags are designed to accommodate a helmet, especially larger 30-80L designs. Check specific dimensions and compatibility before purchase.
Stability improves with a rear rack or dedicated mounting system. Some universal strap designs can work, but stability varies by bike and bag.