The Bern Diablo is designed for tweeners, not quite small enough for a kids helmet and not quite big enough for the adult models. It's structure is based off of the Macon, as it features a thin EPS shell, and similar design.
S: 54-55.5cm
M: 55.5-57cm
L: 57-59cm• Designed for tweeners
• EPS Shell
• 425g