The wrapper's body type obviously affects the position of the baby in the wrap.
While holding your baby in your arms, take your time observing where on your chest he snuggles and which position he naturally chooses. This may change according to his age.
A mother with large breasts may have to shift her baby to one side or the other, or hold him higher or lower than shown for standard carries, so that her breasts won't disturb his pelvis - spine - head axis.
In a general manner, you have to prevent the baby from being in a "comma" (,).
Illustration of the "comma" position:

You can see what a correct position is on our videos.
