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  • Brompton Borough Waterproof Small
  • Brompton Borough Waterproof Small




♥ Staff Pick


We currently have 5 in stock.

The Brompton Borough Waterproof Bag - Small is a robust companion that protects your essentials come hell and high water. It can be worn as a backpack or messenger bag thanks to its one-handed latch clip. The roll top closure with daisy-chain 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 waterproof Aquaguard zippered front pocket offers just enough space for quick-stash items like a phone, keys, wallet or metro pass.    

Constructed from 600D TPU-coated polyester and made using Radio Frequency Welding instead of stitching, this bag is 100% waterproofed. Black aluminum buckles are rust-proof and will stand the test of time. A reflective 3M patch on the front provides visibility on dark nights or in stormy commutes.

  • Genuine Brompton Accessories
  • Brompton Borough Waterproof - Small
  • Roll top provides enough space for daily essentials, and a little extra if needed
  • Constructed using Radio Frequency Welding instead of stitching for 100% waterproofing
  • Front pocket waterproofed with YKK Aquaguard zipper
  • Adaptable strap system can be worn as a shoulder / messenger bag, or as a backpack
  • 9 Litre Capacity
  • Front Mounts only on the Brompton Carrier Block (FCB) - Not Included
  • Compatible with all handlebar types
SKU 9023790

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

DIMENSIONS 30cm X 28cm X 11 cm

Roll Top with daisy-chain buckle closures

Twist-valve for air expulsion  

YKK Aquaguard Zipper with Glove Friendly Zip Pulls

POCKETS 9L main compartment, integrated external zip pocket

Adaptable strap - Can be carried as a shoulder / messenger bag, or as a backpack 

Webbing Carry Handle

MOUNTING Removable Support Frame (FCF), Front Mounted Only on Brompton Carrier Block (FCB) - Not Included
COMPATIBILITY Low, Mid, and High Handlebars
A BIT ABOUT BROMPTON: If you were to walk into the store and look at a Brompton we would say there are three things you should look for in a folding bike. All of them are fairly obvious. One, the bike should ride well - and, on a small wheeled bike that's tricky because there's a fine line between maneuverability (which is a virtue) and twitchiness (which is a vice). Two, the bike should fold well - otherwise you're blood pressure will rise and you'll curse the day you bought it. Third, it should be transportable, or highly storable - because that's the whole point, right?

Brompton is the only company we've seen that answers all three criteria - and believe us, we've tried every brand out there. The reason others can't compete is because Brompton has answered a fundamental engineering problem. If a bike is going to unfold to a large footprint (which takes the twitch out) then it is unfolding to a bigger bike - and by all logic, a bigger bike unfolded would be a bigger bike folded. So, it's pretty much true that for most folding bikes they either have great rideability but poor transportability or vice versa. And nearly all of them are a mess to fold.

Not Brompton. Brompton has designed the Platonic form of all folding bikes. The bike folds to the smallest size on the market, unfolds in a highly precise and easy manner, and has the same axle-to-axle footprint as a hybrid bike. How did they do this? By not only designing a clever frame, but also designing some 1200 proprietary parts that make everything fit - and fit perfectly. Oh, and nearly all of this is made in England. No wonder this bike has a cult following.


Canada: We use UPS, Purolator, Canpar or Canada Post within Canada. All applicable Provincial Taxes are charged at checkout. Orders may take 1-2 business days to process. A tracking number will be provided by email.

USA: We use UPS or Canada Post/USPS in the USA. No US or Canadian Tax is charged at checkout and all cross-border Fees and Duties are prepaid so there are no surprises. Orders may take 1-2 business days to process. A tracking number will be provided by email.

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