Yeah that's the normal Attachment sidezip design, though the leather looks a bit different this time around - less glossy than the usual/pair I have.
So some things I found out about the calf leather used in the KKA riders this season:
-aniline baby calf
-it's reverse leather with some minimal coating to make it somewhat glossy/stiff
-same material as the calf gloves (reversed for the jackets)
So pretty thin and light. On the other hand the...