I found that my nappy bag fitted on my pram better than any other bag i could find... this was important to me because i don't drive though and used my pram usually several times a day. It was a satchel that had special studs on the shoulder strap to keep it in place on the handle. I learnt with my first baby that shoving the nappy bag (or any bag) underneath in the cargo basket was really inconvenient.

I also liked all the extra compartments in a designated nappy bag... I don't like rummaging.... I loved the external pockets that I could pop things like my phone in without having to delve into the depths of the main part of the bag.