Sea Dragon Dreams expandable bike pannier bag with Halloween print, EVA hard shell, and water bottle holder on rack.
Sea Dragon Dreams expandable bike pannier bag with Halloween pattern, showing dimensions and 17L to 35L capacity.
Sea Dragon Dreams expandable bike pannier bag with detachable inner pads, orange interior, and hard shell construction.
Sea Dragon Dreams black expandable bike pannier bag with reflective strips, water bottle holder, and tail light mount.
Sea Dragon Dreams bike pannier bag covered in a high-visibility neon green waterproof rain cover during a water test.
Sea Dragon Dreams expandable bike trunk bag with Halloween pattern, shown mounted on a bike and carried as a bag.

17L–35L Expandable Double-Sided Bike Pannier Bag with Rain Cover

Regular price$81.99
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Shipping calculated at checkout.

  • In stock, ready to ship
  • Backordered, shipping soon

Product Description

Designed for commuting, touring and long-distance cycling, this expandable bike pannier bag combines large-capacity storage, durable protection and practical organisation for everyday riding and outdoor travel. The double-side storage structure helps keep cycling essentials secure, organised and easy to access during rides.


Key Features

Expandable 17L–35L Large Capacity

Features three expandable storage compartments with adjustable capacity from 17L to 35L, providing flexible space for clothing, tools, groceries, cycling gear and travel essentials during commuting or long rides.

Durable EVA Hard Shell Protection

Made with a strong EVA hard shell structure to help protect belongings from impacts, pressure and daily wear while improving overall bag durability during outdoor riding conditions.

Convenient Double Zipper Access

The dual zipper opening design allows wider and faster access to stored items, making it easier to organise and retrieve belongings during cycling trips and daily commuting.

Adjustable Storage Organisation

Includes removable hook-and-loop dividers that allow flexible interior organisation for tools, snacks, electronics and cycling accessories while helping keep items stable during rides.

Safer Practical Riding Features

Designed with reflective strips for improved night riding visibility, external attachment points for water bottles or tail lights, and an included rain cover for additional weather protection.

Shipping Policy - Thank you for shopping at Sea Dragon Dreams. We are committed to ensuring that your orders are handled efficiently and delivered in a timely manner. Below is our detailed shipping policy, including processing times, shipping costs, and digital product downloads.

Processing Times

  • All orders are processed within 2-7 business days.
  • Orders are not processed or shipped on weekends or holidays.
  • If a product becomes suddenly out of stock or unavailable by the supplier, we will notify you via email with updates and further options.

Shipping Costs & Free Shipping

  • We offer free shipping for all US orders over $100.
  • For orders under $100, standard rates apply
  • Once your order is shipped, you will receive a confirmation email with tracking details.

Order Tracking

  • Once your order has shipped, you will receive an email with your tracking number. You can use this number to follow the shipment’s progress on the carrier’s website.

Lost or Damaged Packages

  • If your package is lost or damaged in transit, please contact us at seadragondreams@gmail.com. We will work with the carrier to resolve the issue.

For any questions or additional support, contact us at 850-483-1327 or via email at seadragondreams@gmail.com.

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