Hi, I've been looking around for a pram bag that's suitable to use with a Phil & Teds Sport when using as a double. I've seen the official 'hang-belt' and 'pannier' bags and neither really fit the bill. The former being too small for storing nappies, clothes etc and the latter making the buggy wider. Looking for something that hangs over the handle and carries the usual load, but sits high, above the child in the back's head. Any recommendations? Thanks.