Docker Cap / Dockers Hat / Skull Cap/ Brimless Cap
The docker beanie was a regular attire for many of the port workers in the 30’s keeping their heads warm and cozy.
To measure your hat size, wrap a tape measure around your head just above your ears. The tape should fit comfortably – not too tight. Round up to the nearest size.
If you have no tape measure, you can measure with a string, which you then measure with a ruler.