there's a cushiony bit in the middle thats 8cms wide and 36cms long. On either side of that cushion is 10cms of wrap that spread gradually across your back (in a front carry) and support baby's weight without digging.
It's a very comfortable style that allows you to bunch or spread the tails as you prefer and accommodate pretty finishes like knotless or tibetan. (Total strap length is 2.1m and I had quite long tails in a regular tie-off.)
Soul recommends this be used between 7-18 kgs, and in trials with my demo dolls I would agree that it's not ideal for little babies. You can roll the waist and apron it, but it's still quite a tall carrier. In saying that, the 36cms -wide-seat accommodated my 8kg demo doll very well, and was utterly comfortable in front and back carries with Audrey (at 16kgs), especially once I spread the wrap straps to give her a supported knee-to-knee seat. The body panel is 38 cms tall and features seat darts to help that bottom get perfectly centred every time.
Still curious? You can see it in action HERE :)