It is also used as a chinstrap for the liner when just the liner is worn by itself. Dark Brown.
RARE MAKER MSA US ARMY WW2 M1 HELMET LINER ALL ORIGINAL FACTORY PAINT
US M1 Helmet Liner - Repro American WW2 Korea Vietnam M1 Liner with Chin Strap
US M1 Helmet Liner Brown Leather Chinstrap - Euroclone - Ideal for WW2 Helmet
Original U.S WW2 M1 Front Seam Helmet Heat Mc Cord 1942 Stamp 895E
Original WW2 US Army M1 Helmet Front Seam - With Liner
