This was the most common version of the H-5, used on jets, propeller aircraft and helicopters.
This version was the standard headgear of Swiss AF pilots until the mid 1980's. It features the following characteristics:
"Gull wing cut" in the area above the pilot's eyes, in order to improve visibility;
Improved Internal padding;
British Mk.-2 visor reshaped to match and not interfere with
A-13 A/ MS22001 oxygen mask and cast oxygen mask receivers;
Installation of cast oxygen mask receivers;
Single plug comm connector;
Repositioned rear comm cable exit with supplemental leather hose removed in order to avoid excessive cable tension;
In some cases, re-installation of boom mike "Banana Mount";
A typical combination included a A-13 A/ MS22001 oxygen mask, depending on (altitude) use modified or not with a supplemental diluter valve.
The displayed sunglasses are made by the Swiss company AO Optiswiss, based on the original American Optical design. Main difference of Optiswiss built sunglasses (named F-343) was the heavier and sturdier frame.
More information on the H-5 HERE