It's name of new KT line of foil boards. Advertised as 3 in1,I assume Surf, SUP, Wing. Design of bottom is very interesting. Unorthodox ... if that word can be used for such a new sport. ktsurfing.com/boards-2022/ginxu/ 
That cutout for the foil boxes will definitely create more direct feel over foil control. I wonder what other effects it will create.
Looks super cool.
Might reduce drag on touch downs by placing the mast plate behind the step?.
