What is "chinstraps"

Usage examples of "chinstraps".

Untying the chinstraps of his baked leather helm Parmenion pulled it clear, running his fingers through his sweat-soaked hair.

Parmenion tied the chinstraps on his helm and swung to watch the gathering men.

For over twenty months the scores of burnt-out hulls piling up in Adirondack chasms were regarded as either suicides or inexplicable doze-behind-the-wheel-type single-car accidents by NNY State Troopers who had to detach their chinstraps to scratch under their big brown hats over the mysterious sleepiness that seemed to afflict Adirondack motorists at what looked to be high-adrenaline mountaintop passes.