Brompton Borough WP Backpack M 17L

The Brompton Borough Waterproof Backpack M is a versatile, weather-ready backpack designed to move seamlessly between bike and back. Whether you’re commuting, exploring the city or heading out on a day trip, this clever 17-litre backpack is built to keep up - whatever the forecast.

Fully waterproof and made using a specially developed recycled fabric, the Borough Waterproof Backpack protects your essentials from rain and road spray, so you can focus on the journey ahead. When mounted on the bike, it sits in landscape orientation for stability; off the bike, it switches to portrait orientation for comfortable everyday carrying.

Designed specifically for Brompton riders, the bag attaches quickly and securely to the Front Carrier Block using four quick fixings. When it’s time to ride, the low-profile shoulder straps are instantly secured by discreet concealed magnets, keeping everything neat and out of the way.

Despite its sleek appearance, the backpack offers a spacious 17L capacity, with room for daily essentials and more. Inside, you’ll find a dedicated laptop sleeve, multiple internal pockets, and a bright orange lining that makes finding items quick and easy. An external zipped pocket provides fast access to small items - perfect for keys or wallets (note: this pocket is water resistant, not waterproof).

Stylish, practical and thoughtfully designed, the Brompton Borough Waterproof Backpack adds flexibility, comfort and confidence to every ride - on the bike or on your back.

Key Features:

• Fully waterproof construction for all-weather riding
• Dual-orientation design: landscape on the bike, portrait on your back
• Quick attachment via Brompton Front Carrier Block
• Concealed magnetic strap system for neat riding setup
• Dedicated internal laptop sleeve
• Made from specially developed recycled fabric
• Compatible with all non-electric Brompton handlebars

Specifications:

• Capacity: 17 litres (expandable)
• Weight: From 1.5 kg
• Dimensions: 40 × 30 × 14 cm (W × H × D)
• Main Material: 51.5% Nylon, 48.5% TPU
• Lining Material: 100% Nylon
• Waterproof: Yes
• Water Resistant: Yes (external pocket only)
• Straps: Hi-density foam shoulder straps
• Laptop Sleeve: Yes
• External Pockets: 1 zipped pocket (water resistant)
• Fitment: Front Carrier Block
• Compatibility: All non-electric Brompton bikes