This is the bag most Brompton riders start with — and for good reason. How it works It clips onto the front of your bike using the standard carrier block, sits securely on the frame, and comes off in one motion when you arrive. No fiddling, no straps, no awkward balancing acts. Off the bike, carry it by hand or sling it over your shoulder — it works both ways. What's inside Inside, there's 15 litres of space. That's enough for a 14-inch laptop, your phone, wallet, a water bottle, and whatever else you need for the day. A dedicated laptop compartment keeps things separated and protected. The back of the bag has two open pockets — perfect for grabbing your phone or keys without unzipping anything. Hidden pockets are tucked between the layers: the left one holds the rain cover, the right one is ideal for your keys or a multi-tool. Mesh pockets on both sides fit a water bottle or other small items. Two embroidered British flag details give it a classic touch. Weather protection The material is water-resistant nylon, and a high-visibility rain cover with reflective strips is included — it tucks neatly into its own side pocket so it's always with you. Options Bag only — includes the bag, the frame, and the rain cover. Choose this if your Brompton already has a front carrier block fitted. Bag with carrier block — includes everything above plus the front carrier block. Choose this if your Brompton doesn't have one yet, or if you're not sure — most new bikes don't come with one. Not sure which option you need? Send us a message. We're happy to help you figure it out. Specs Capacity 15L Dimensions 40 × 25 × 15 cm Weight approx. 1.25 kg Laptop compartment fits up to 14" Material Water-resistant nylon Rain cover Included (high-vis with reflective strip) Carry options On-bike, hand, or shoulder Compatibility Brompton & 3Sixty front carrier block