French soldiers were issued M26 helmets in World War II, which was introduced in 1926 and used by French forces throughout the war. The M26 helmet was made of steel and had a distinctive dome-shaped design. The M26 helmet provided good protection.
In addition to the M26 helmet, the French military also used the M15 helmet, which was similar to the M26 helmet but had a slightly different shape. French military also used the M16 helmet, which was made of fiberglass and had a more modern design.
One issue with the M26 helmet was its weight. The helmet was made of steel and was relatively heavy, which could be burdensome for soldiers who had to carry it around for long periods of time.