7 Best Waterproof Motorcycle Bags (Researched and Compared)

We researched and compared the best waterproof motorcycle bags on the market. Our evaluation is based on manufacturer specifications, published industry standards (including IP ratings and material certifications), and aggregated owner feedback. We focused on genuine waterproofing, durability, ease of mounting, and safety features. Here are our top picks.

1. Mosko Moto R40 Reckless 40L: Best Overall Waterproof Motorcycle Bag

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In our evaluation, the Mosko Moto R40 Reckless 40L stands out as the best overall waterproof motorcycle bag. Researched from manufacturer specs and owner feedback, its 500D Cordura shell with TPU coating and welded seams provide IPX6-rated waterproofing. The roll-top closure ensures no water ingress even in sustained downpours. The modular harness system allows secure attachment to a wide range of motorcycles, and the included dry bag insert adds an extra layer of protection.

However, the R40 comes at a premium cost, making it less accessible for riders on a tight budget. It also adds significant weight when fully packed. If you prioritize maximum waterproofing and durability for long-distance adventure touring and can justify the investment, this bag is a top choice. Those seeking a more affordable option for occasional use may want to look elsewhere.

• True roll-top waterproof design with welded seams keeps gear bone dry in heavy rain
• Modular harness system allows for multiple mounting options on various bike models
• Includes removable dry bag insert for extra protection and organization

Pros: Exceptional build quality and waterproofing; Versatile mounting system works on most adventure and dual-sport bikes
Cons: Premium price point may not suit budget-conscious riders

2. Kriega OS-32 Adventure Pack: Best Roll-Top Waterproof Bag

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Our research into the Kriega OS-32 Adventure Pack reveals a highly waterproof roll-top bag that excels in keeping contents dry. With a 400D Nylon construction and a fully taped inner seam system, it offers submersible-grade protection. The four-point harness provides a secure and comfortable fit, whether worn as a backpack or mounted on the bike. Owner feedback consistently praises its reliability in extreme wet conditions.

However, at 32 liters, the capacity is on the smaller side for long tours. It also lacks internal organization pockets. If you need a compact, bombproof waterproof bag for day trips or as a supplement to larger luggage, the OS-32 is an excellent choice. Riders needing more volume for multi-week adventures should consider larger options.

• Submersible-grade waterproofing with a fully taped inner seam system
• Comfortable and secure harness with four-point mounting straps
• External compression straps help stabilize loads and reduce bulk

Pros: Excellent waterproofing that can handle submersion; Lightweight and comfortable to wear as a backpack
Cons: Smaller capacity may not suit extended trips

3. Givi EA117 Tanklock Waterproof Bag: Best Tank Bag

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After comparing specifications and owner feedback, the Givi EA117 stands out as a top waterproof tank bag. Its 600D Polyester with PVC coating and roll-top closure provide reliable water resistance for heavy rain. The Tanklock mounting system is quick to attach and detach, making it practical for daily commuting. The expandable volume and internal pockets add convenience.

However, the bag is not designed for submersion and may allow moisture in if submerged. The magnetic mount option is less secure than the tanklock. If you need a waterproof tank bag for everyday use and moderate rain, the EA117 is a solid choice. For extreme off-road or water-crossing scenarios, a fully submersible bag may be better.

• Quick-release Tanklock system fits many bike models securely
• Expandable volume from 13 to 17 liters for flexibility
• Includes a transparent map pocket and internal organizer pockets

Pros: Convenient tank mounting with easy removal for refueling; Good internal organization for small items
Cons: Not fully submersible; can leak if fully submerged

4. Lomo Waterproof Motorcycle Tail Bag 30L: Best Budget Waterproof Bag

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In our evaluation, the Lomo Waterproof Motorcycle Tail Bag offers impressive waterproofing at a budget-friendly price. Made from heavy-duty PVC tarpaulin with welded seams, it is 100% waterproof and can handle heavy rain. The roll-top closure is straightforward and effective. Owner feedback highlights its reliability for the cost.

However, the bag lacks internal pockets and padding, and the mounting straps are basic. It may not be as durable as higher-end fabric bags over long-term use. If you need an affordable, no-frills waterproof bag for occasional trips or as a backup, the Lomo is a great pick. Riders seeking more features and long-term durability should invest in a pricier option.

• Heavy-duty PVC tarpaulin with welded seams for 100% waterproof protection
• Simple roll-top closure with buckle straps
• Includes removable shoulder strap and mounting straps

Pros: Excellent value for the price; Fully waterproof construction
Cons: Basic design with no internal organization

5. Ortlieb Dry-Bag QL2 25L: Best Lightweight Dry Bag

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Our research into the Ortlieb Dry-Bag QL2 25L shows a lightweight, submersible dry bag ideal for minimalists. With an IP67 rating and PU-coated nylon, it keeps contents dry even if dropped in water. The QL2 mounting system allows quick installation and removal. Owner feedback appreciates its low weight and reliability.

However, at 25 liters, it is one of the smallest options, and the lack of padding means fragile items need extra care. The mounting system may not fit all bikes securely. If you need a compact, ultralight bag for short rides or as a supplementary dry bag, this is a fine choice. For larger loads or rugged use, consider a more robust bag.

• IP67 rated, submersible to 1 meter for 30 minutes
• Quick-release QL2 mounting system for easy attachment/detachment
• Extremely lightweight at only 1.3 lbs

Pros: Very lightweight and packable; Proven submersible waterproofing
Cons: Small capacity limits use to day trips

6. Nelson-Rigg Hurricane 30L Waterproof Tail Bag: Best for Commuters

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In our comparison, the Nelson-Rigg Hurricane 30L offers a good balance of features for daily commuters. Its 1680D Ballistic Nylon with PVC backing and roll-top closure provide IPX5-rated water resistance. The reflective piping improves visibility in low light, and the internal mesh pockets help organize gear. Owner feedback notes it handles moderate rain well.

However, the bag is not fully waterproof if submerged, and some users report minor leakage after hours of heavy rain. The mounting straps can be fiddly. If you need a durable, water-resistant bag for commuting and occasional light rain, the Hurricane is a solid choice. For extreme weather or off-road adventures, a fully submersible bag is recommended.

• Waterproof roll-top design with reflective piping for visibility
• Multiple mounting straps and a removable shoulder strap
• Internal mesh pockets for organization

Pros: Reflective details enhance safety; Good internal organization
Cons: Not fully submersible; may leak in prolonged heavy rain

7. Tusk Waterproof Dry Bag 15L: Best Compact Dry Bag

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Our evaluation of the Tusk Waterproof Dry Bag 15L finds it a no-frills, compact solution for carrying a few essentials. Made from PVC tarpaulin with welded seams, it is fully waterproof. The roll-top closure is effective. Owner feedback indicates it works well for small loads like a change of clothes or tools.

However, at 15 liters, it is too small for most trips, and the mounting straps are basic. It lacks padding and organization. If you need a tiny, inexpensive dry bag for minimal gear, the Tusk is a decent option. For anything beyond a day trip, consider a larger bag.

• Compact size fits easily on small bikes or as a top bag
• 100% waterproof with welded seams
• Includes a simple strap system for mounting

Pros: Very affordable and compact; Reliable waterproofing for its size
Cons: Very small capacity, limited to essentials

Frequently Asked Questions

What makes a motorcycle bag truly waterproof?

A truly waterproof motorcycle bag uses either a roll-top closure (which creates a watertight seal when rolled multiple times) or a dry bag design with welded or taped seams. Materials like PVC tarpaulin, TPU-coated nylon, or heavy-duty Cordura with a waterproof membrane are common. Look for an IP rating (e.g., IPX5 or IP67) indicating resistance to water jets or submersion.

Can I use a regular dry bag as a motorcycle bag?

Yes, many dry bags can be strapped to a motorcycle, but they may lack secure mounting systems and abrasion resistance. Motorcycle-specific bags often feature reinforced straps, anti-slip backing, and durable materials to withstand vibration and road debris. For occasional use, a generic dry bag works, but for regular riding, a dedicated motorcycle bag is safer and more durable.

How do I mount a waterproof bag to my motorcycle?

Most waterproof motorcycle bags come with straps, buckles, or a harness system that attaches to the seat, tail rack, or tank. Some use magnetic mounts or quick-release systems. Ensure the bag is securely fastened to prevent shifting at high speeds. Always follow the manufacturer’s instructions and check compatibility with your bike model.

What size waterproof bag do I need for a motorcycle trip?

For a day trip, 15-30 liters is usually sufficient. For a weekend trip, 30-50 liters may be needed. For longer tours, consider 40-60 liters or multiple bags. Think about the items you need to carry: clothing, tools, electronics, and camping gear. It’s better to have a slightly larger bag with compression straps than a bag that’s too small.

Are waterproof motorcycle bags also dustproof?

Many roll-top and dry bag designs are also dustproof because the closure creates a tight seal. However, not all are explicitly rated for dust ingress. For off-road or dusty environments, look for bags with IP6X dust resistance or those advertised as dustproof. A roll-top bag with a good seal will keep out most dust, but fine particles may still enter over time.

Our Verdict

After researching and comparing the top waterproof motorcycle bags, the Mosko Moto R40 Reckless 40L takes the top spot for its superior build, waterproofing, and versatility. The Kriega OS-32 Adventure Pack is a close runner-up, offering excellent roll-top waterproofing in a lighter, more compact package. Both are excellent choices for riders who demand reliable protection for their gear.