This is Arianna, 7 months then, sleeping soundly in the Manduca carrier in Spain Nov 2010. I bought the manduca carrier just before our 1st overseas trip and was so glad I did. We did not bring a stroller along.
The smart strap keeps shoulder straps in place when Manduca is used in Ruck Sack (Backpack) Style
The Manduca Baby carrier is an extremely versatile baby carrier with option to used in rucksack or backpack style or cross-strap manner. When used in the backpack style, the smart strap that is attached to the shoulder straps provides extra security by helping keep the shoulder straps from slipping off the babywearer's shoulders.
If however, the Manduca carrier is to be used for cross strap carry or hip carry style, the smart strap can then be easily detached from the shoulder straps and kept away. This feature help keeps the shoulder straps neat and free from loose straps.