When should I wear the Ergobaby Omni 360 baby carrier with crisscross ('X') straps?

You can wear the Ergobaby Omni 360 carrier with shoulder straps crossed on your back in the front carry position, with baby facing in or facing out. Wearing crossed straps or parallel straps is individual comfort preference. The crossed straps allow you to easily position the shoulder straps where it is most comfortable for you to wear them on your shoulders, which makes it a great feature for parents with narrower or wider shoulders. It is also appreciated by parents with less mobility as you don't need to reach in the back to fasten and tighten the chest strap, as all the buckling and fastening is done on the front.