Borough Waterproof - Large

Brompton SKU: Q101578
Brompton Borough Waterproof Large (4573106831411)
Brompton Borough Waterproof Large (4573106831411)
Brompton Borough Waterproof Large (4573106831411)

Borough Waterproof - Large

Brompton SKU: Q101578
Regular price $341.00 Sale price $244.00 Save $97
Shipping calculated at checkout.

Within 30 days of your purchase, if you find a lower advertised price for this product, we’ll match it. If we discount this product within 30 days of your purchase, either online or in-store, simply present your original receipt and we’ll match the price and refund you the difference.

To be eligible for a price match, the product must meet the following criteria:

  • Product must have the exact specifications
  • Price must be listed in CAD or USD
  • Final matched price must include all shipping, handling, and duties
  • Must be sold and shipped by an authorized dealer in Canada or the U.S. (excluding Amazon, eBay, or any other online-only retailers)
  • Must be new and not refurbished or liquidated stock
  • Must be in stock and available immediately
  • Price must not be lower due to an error, sale, or discount

To request a price match, visit our store or contact us. Please provide a written quote or a web address for the product showing the lower price.

The Brompton Borough Waterproof Bag - Large is a robust companion that protects your things come hell and high water. Modelled after the Borough Roll-Top, it has a slightly smaller capacity but the huge added benefit of 100% waterproofing thanks to Radio-Frequency welded construction in place of traditional stitching.

A large messenger style bag with a roomy 25L capacity, the Borough Waterproof has a large main compartment lined with orange nylon to make it easy to locate essentials quickly. A padded laptop sleeve and zippered mesh internal pocket keep things organized, while the two roll-top pockets on the rear of the bag offer space for water bottles or wet gear. The roll top closure with squeeze-buckle closures keeps water out while allowing for flexibility when you need to carry a little extra, and the twist-valve expels air during compression for a compact svelte look. The aluminum slide clip connected to webbing on the front allows you to strap a helmet or raincoat to the outside of the bag. A reflective 3M patch on the front provides visibility on dark nights or in stormy commutes.

  • Genuine Brompton Accessories
  • Brompton Borough Waterproof - Large
  • Roll top provides tons of internal storage space, plus a little extra room if needed
  • Constructed using Radio Frequency Welding instead of stitching for 100% waterproofing
  • Laptop sleeve, internal pocket, and 2 roll-top pockets for bottles or quick-grab items
  • Padded nylon shoulder strap helps you carry heavy loads comfortably off the bike
  • Squeeze buckle closure keeps your things dry and secure
  • Front straps secure helmet or coat to front of bag during transport
  • Reflective 3M patch for nighttime visibility
  • 25 Litre Capacity
  • Front Mounts only on the Brompton Carrier Block (FCB) - Not Included
  • Compatible with all handlebar types
SKU 9023776

600D TPU coated polyester with RF Welded construction (100% waterproof)

DIMENSIONS 30cm X 43cm X 18 cm

Roll Top with squeeze-buckle closures

Twist-valve for air expulsion  

POCKETS 25L main compartment, internal mesh pocket
LAPTOP SLEEVE Integrated padded sleeve in main compartment

Detachable shoulder strap with mesh pad 

Webbing Carry Handle

MOUNTING Removable Support Frame (FCF), Front Mounted Only on Brompton Carrier Block (FCB) - Not Included
COMPATIBILITY Low, Mid, and High Handlebars
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