Feature

●It is medium size, about 13.5L(approx 30cm*30*15cm). You could take your mobile phone, computer, wallet or tablet computer to work. You can also bring your glasses, clothes, gloves, water bottle, food or other tools to travel. there are 3 inside pockets.
●Its material is nylon 1050D, which is water resistant. The ordinary bag is only 500D. Its material is very good. It is not waterproof because it is made of needlework. you could use the rain cover in rain day.
●Convenient, This bag can be carried by hand or shoulder or bike or backpack. We provide a multifunctional strip. In the bags backpack system, it use quick-release webbing and plastic loops, it is smaller than a normal backpack. With the shoulder strap, the bag can carry a maximum weight of 7kg(15.4lb). it exceeds 5kg in weight, the joints are overstressed and prone to unraveling and cracking. If mounted on bicycle, the bag can carry a maximum of 15kg(33lb).
●Safe, with reflective strips on rain cover. it can protect you in the dark.
●Compatible with Brompton original carrier block and TWTOPSE alloy carrier block. if your bike dont have it, you need prepare it yourself


Description

Important Tips:
In the bags backpack system, it use quick-release webbing and plastic loops, it is smaller than a normal backpack. With the shoulder strap, the bag can carry a maximum weight of 7kg(15.4lb). it exceeds 7kg(15.4lb) in weight, the joints are overstressed and prone to unraveling and cracking. If mounted on bicycle, the bag can carry a maximum of 15kg(33lb).
it fit Brompton original carrier block(plastic) and TWTOPSE alloy carrier block. this item dont include carrier block.
We do not recommend the use of third-party carrier block, because we cant be sure if it uses the standard size. some carrier block uses a large size, this bag cannot be installed.
Most of carrier block is little loose design, function of the middle fastener is to prevent the bag from falling off, and its function is not to fix the bag.

About it:
I am the designer of this bag. At the same time, I am also a enthusiast of folding bikes. this Bag is newest 2022. When I cross the flyover, climb the stairs, take the subway or bus, if bag is installed on the bicycle and it is inconvenient to carry. Using the shoulder bag mode, it slips easily. So i add a backpack mode for it, which perfectly solves all problems. Usually I use this bag go to the shops, daily commute and weekend day trips.

Product Details:
Brand: TWTOPSE
Name: Bike bag for Brompton
Series: British Flag Bag series
Material: 1200D nylon
Size: Approx 13.5L (30*30*15cm)
Suitable for all handlebar types, S M P H handlebar