When you have a new baby, and all the gear that you have to lug around, the last thing you want to do is bend down almost to the floor to get to your diaper bag thats in the lower part of your stroller to find something - that is always at the bottom. I hated doing that with my newborn. They will work with most, as long as you have loops for a shoulder strap - which most diaper bags have nowadays. All you have to do is velcro them to your stroller and clip on your diaper bag. It puts your bag right under the stroller caddy, so that everything is right there where you need it, when you need it most.