Carradice CarraDry Barbag - Grey/Black - 9 Litre

I recommend this product

A.Light holder for two lights can be adjusted horizontally. QR bracket takes about 2secs to remove and replace. Hardly any other bags have this extremely useful safety feature! B.4 pockets plus mesh pocket. Thin when not in use so as to maximise internal volume. Great place to store valuable items. C.Map holder too narrow to hold 50 or 25k maps unless folded in 1/4! Good for book, phones, compass etc. D.Straps can be wrapped around cover flap to add jackets etc, (straps not inc). E.Adj shoulder strap. F.Fully Waterproof. G. Solid sturdy construction. H.Double secure brackets with handlebar adapters for 25.4mm, 31.8mm can be purchased. I.Handlebar bracket can be extended with extension module. J.Bag can be locked to the bike with the 'Klick Fix' lockable key latch. K.Can be removed or replaced in a matter of seconds. L.Securing the flap with the buckles can be fiddly if you have excessive cables close to bar, its not that bad and its much, much easier and quicker than a roll top!

A. Light holder interesting but looks hard to use. B. interior good with 4 thin pockets and is light in colour. C.Map holder too narrow to hold UK 1 to 50k maps well so would waste lots of time refolding them. No fun in the rain. D. No easy strap storage

The bag when closed is waterproof. The lid is awkward to fit over the side walls of the bag though, so in a downpour, getting something in or out quickly and keeping the contents dry is difficult.
The two clips closing the lid are at the back. The only way to open/close the lid is to remove the bag because the handlebars block access to the clips.
Klikfit attachment/detachment is very good
The map case is waterproof and a good size however it is made of quite flimsy material.