This beanie is made with wool felt. It will hug closely to your head, thanks to the velcro strap.
The old french sailors used to wear this hat because it arrives above the ears (so they could hear the wind) and it has no visor (so the cap couldn't go away because of the wind !)
Very popular with sailors,
Cut in "pea coat" (wool)
Adjustable on the back with Velcro (scratch)