The comfort kid pro is a bit higher (80 cm against 72 cm) but has a capacity of 12 L instead of 14 L for the standard version. The pro version has a footrest which is not present on the standard version.

Standard version:
Aircomfort system: mesh back
Vari Slide system: adjustable back according to the size of your back
Vari Flex system: the hange belt guarantees a good freedom of movement.

Pro version:
VariSlide system: adjustable back according to the size of your back.
Vari Flex system: the hange belt guarantees a good freedom of movement.
The abdominal strap can be tightened effortlessly with the PullForward system.
Removable 10 litre backpack. Can be used alone or attached to the chest strap of the baby carrier.