I'm looking for ideas for a fairly compact designer bag for daily use with small children. I used to have a leather mini backpack which was perfect but the zip has failed, the backpack was ideal because it was out the way and stayed put on my back when lifting toddlers around in parks and soft play etc. It will be used to stow a spare nappy, purse, gloves, small umbrella etc, not much more than that. Must be somewhat waterproof (i.e leather). I want something that is fairly youthful or universally classic and that is more of a city/commuter type bag or country chic, not a hiking backpack. I'm assuming a backpack is still the best option but am open to other styles of bag for the purpose. I'm not sure if backpacks are a bit dated now for every day use? The budget is flexible for the right bag, around £300-£2000.
Thank you for your help!