Fast US Shipping
Fast US Shipping

Expandable Waterproof Bike Trunk Bag 20–35L for MTB & Road Cycling

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US $0.00 Standard shipping
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Ride Further with a Reliable, Spacious Bike Trunk Bag

Discover a bike bag designed for cyclists who want more room, more protection, and more convenience on every ride. This expandable waterproof trunk bag offers a generous 25–45L capacity, giving you the flexibility to carry everyday essentials, long-distance touring gear, or your commuting necessities. Made from durable polyester, nylon, microfiber, and EVA, it stands up to rain, dust, and the rough demands of outdoor cycling.

Built for Performance and Everyday Use

This multifunctional trunk bag comes with dual-side storage and a roomy central compartment that keeps your belongings secure and organized. Its rainproof construction shields your items during wet rides, while the reinforced structure helps it maintain shape even when fully loaded. Whether you’re hitting mountain trails, commuting to work, or packing for a weekend adventure, this bag adapts to every situation.

Key Features

  • Expandable 20–35L capacity for short trips or long-distance tours
  • Waterproof materials to protect your gear in unpredictable weather
  • Dual-side pannier design for balanced weight distribution
  • Durable polyester, nylon, microfiber, and EVA construction
  • Secure attachment system for a steady, wobble-free ride
  • Spacious interior with easy-access compartments

Benefits

  • Stay organized: Separate storage areas make packing simple and efficient.
  • Ride in any weather: Waterproof materials keep your essentials dry.
  • Carry more with ease: The expandable design fits everything from tools to clothing.
  • Enjoy stable handling: Balanced pannier structure improves bike stability.
  • Perfect for all cycling styles: Great for commuting, road biking, touring, and mountain trails.

Why This Bag Stands Out

What makes this trunk bag special is its ability to combine toughness, practicality, and adjustability into one sleek package. Its expandable volume lets you pack light or heavy without switching bags, and the waterproof build ensures reliability no matter the weather. It’s a dependable companion for daily riders and long-distance explorers alike.

Get Ready for Your Next Adventure

Upgrade your ride with a trunk bag that keeps up with your lifestyle. Store more, travel farther, and enjoy the freedom of having everything you need right on your bike. Add it to your setup today and make every ride smoother, safer, and more enjoyable.

How much does shipping cost?

We are glad to bring our customers great value and service. That’s why we provide fast shipping from our Fulfillment Center in California by UPS and USPS.

What countries are you delivering to?

As of now, we’re delivering to the United States only.

How can I track my parcel?

Once your parcel has left our Fulfillment Center, you will receive an email with a tracking number to monitor your parcel movements.

Can you ship my order to a business address?

Yes, you can write your business address in your order details if it’s more convenient to you.

Can you ship my order to a PO Box address?

Yes, you can select delivery to a PO Box if it’s more convenient to you.

Can you ship my order to APO or FPO military addresses?

Yes, we ship anywhere in the United States, and to all US territories and military APO/FPO addresses.

What happens to my parcel if it is delivered while I’m not there?

Depending on the destination and the package size, your parcel will be left in your mailbox or on your porch, or it may be left with a neighbour.

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