I bought this while pregnant with my third child. I wore my second child in it even while pregnant and it worked okay. Just for fun I even wore my oldest child in it to see how it felt since she was four at the time.When my baby was born, I tried wearing him and while it was great for breastfeeding, unfortunately the material would stretch and my baby would sink lower and lower until he was in a ball at my pelvis.THEN one day I put it on to wear it on a walking trip and MY INFANT FELL OUT of the Ultimate Baby Wrap. I knew how to put the thing on. I'd been doing it for 6 months by this time. That was not the problem. Thankfully, my hands were up by him and my friend was standing next to me and we caught him. I took the wrap off immediately and got rid of it.I love to wear my babies and still wear the younger two, but I will NOT do it in an Ultimate Baby Wrap.