I agree with Rufalina - the ergo with the infant insert is brilliant. I've had my DD#2 in there from birth and its been great. She is so snuggly warm and is very secure - I can easily have her in the ergo and still bend down, move around etc dealing with DD#1. I've also got a ring sling (and a BB and a HAB!!!) and would definitely choose the ergo above them all right from birth and onwards.