The other option is a portamee. It's a hip carrier that goes up to 16kgs but the thing that I like is you can do away with a bag if need be. It has a clip on insulated bottle carrier, a large pouch for money with two compartments that's easy to access, a pack at the back large enough for a diaper or two, small amount of food / formula, a place for your phone and a place to clip some toys onto. Great for shopping if you are going to be coming home with bags.