Looking zoomed in to the promo image, the waist band and front panels are defiantly leather. The red border trim matches the trim on the hips. The hip panels do not appear to be leather but harder to tell. The backing behind the 2 front panels looks fabric, something like a raw silk or taffeta maybe.
To get that nice clean fold on the back I doubt it would be leather as the drape is worng. I can also see a bit of a point at the front in the promo. So this makes me think it's less of a Kama more of a skirt, with the two front leather "flags", leather wrap and then a padded panel on the hips.