This new (as at time of writing - introduced in 2016) detailing Brompton saddle pouch is designed for carrying small stuff! (for example keys, an energy bar, headache tablets, spare inner tube etc - but probably not all at once, it's not that big!)

The capacity of the Brompton pouch is 0.4 litres

Brompton saddle pouch dimensions are: 120mm wide x 120mm high x 60mm deep

Brompton saddle pouch key features Small and light Fits securely to saddle with velcro straps Doesn't interfere with the Brompton fold Easy to release / attach