During my Tokyo trip earlier this month, I managed to try on and buy a Kabuto Izanagi (matte black) in XL/XXL (61-64 cm)
INFORMATION | BICYCLE | KABUTO WORLD WIDE PREVIEW</mt:If> (ogkkabuto.co.jp)
This fits large, rounder heads (a/k/a Asian Fit) very well, comparable to the original Kask Mojito XL.