Brompton S Bag — Classic Front Bag
Fits Line: A-Line, C-Line, P-Line, T-Line, G-Line
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 |
Why order from Foldrio?
Because we've been in the Brompton accessories world since 2019 — and we stand behind everything we sell.
Every item tested for Brompton compatibility
We don't list a product until we're confident it works. No guesswork, no surprises.
2 year warranty on all products
Our warranty, not the manufacturer's. If something fails, we fix it.
100% money-back guarantee
Not happy? We refund. No questions asked, no forms to fill.
Free worldwide shipping
Always included. No fees at checkout, nothing due on delivery.
Guaranteed delivery
If your order doesn't arrive, we send a free replacement.
Fast support from people who know Brompton
Questions about compatibility, installation or your order — we respond quickly.
No hidden costs
The price you see is the price you pay. No import fees, no customs charges, nothing due on delivery.