The Multi 2.0 is definitely the most ergonomic seat on the market for the world facing position. It allows the ideal spacing and the good positioning of the hips in flexion. It won the Mom's Choice Award for its exceptional qualities. The Woven Baby Wrap can also provide a good ergonomic sitting position for the baby, but it is the most difficult position to execute perfectly. It takes a little more skill and knowledge of positioning and knotting techniques to properly place a wrap. The EvöAir and the PöpNgo offer a correct sitting position but a little more spread out for the PöpNgo and less supported for the EvöAir.