Brompton Borough Waterproof Bag - Small

Color: Navy
Size: S
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Completely impervious to water, the simple Brompton Borough Waterproof roll-top bag provides protection for all your small essentials, even in the meanest conditions.

Location Image of color NavyLocation Image of color Navy
Location Image of color Navy


  • Flexible design can be worn as a shoulder bag or a backpack, with just enough space for a day trip adventure
  • Zipped front pocket allows quick access for items on the go
  • Glove-friendly zip pull makes it easy to open the front pocket
  • Aluminum hardware offers a stylish look
  • Bag is finished with a rubberized webbing handle, making it compatible with all Brompton handlebar types
  • Bag clips onto a Brompton bike using the front carrier block; front carrier block not included
  • Includes an air-release valve


View all Brompton Bike Frame Bags

Technical Specs

Best Use

Bike Commuting

Gear Capacity (L)

9 liters

Gear Capacity (cu. in.)

549 cubic inches


600-denier TPU-coated Polyester with RF-welded construction


16.9 x 11.8 x 7.08 inches


1 lb. 5 oz.

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