German WWII Helmet Liner M31 & Chin Strap- Dated 1940, Size 66/58 Perfect for reconditioning an original world war two helmet or upgrading a replica. 100% genuine supple leather liner with Aluminum & Steel Band- just like they made them in WW2. Includes correct all leather chinstrap. Various replicated vintage markings and a 1940 date. 66/58- Shell Size 66, Head Size 58 (US 7 1/4) Designed to fit the German WWII M35, M40 & M42 steel helmets.