hun, i have an isoki hobo (i think that's what it is called) - it's fairly big and great for us cos we use cloth nappies (which are bulkier than sposies) - it would be fine for taking for two bubbas i think. comes with a nappy change mat, and a couple of other bags inside (i think a bottle insulator and a wet bag maybe) - it IS on the exxy side, but a gorgeous bag - and reversible if you want to change it for a special occassion