This is a DML 1:6 Scale German WWII Panzer M40 Overseas Cap for head circumference 110mm.
This is a scale 1:6 outfit that is for toys, not for a real human.
"Balthasar 'Bobby' Woll", Leibstandarte Tiger Ace, s.Panzer-Abteilung 101, LAH Division, Villers-Bocage, 1944 (Unterscharfuhrer)