Completely and utterly possum pelt, with a domed front that can come down over the forehead, and flaps that dome around the back until you need to stop the wind and cold on your neck. Utterly exquisite feeling: incredibly warm, incredibly light. Often seen in Antarctica (hence the name). Also seen these days mucking out horses, deer-stalking and flying along in open top sports cars around Edinburgh!
Sizing is based on head circumference:
Medium: 57-59 cm
Large: 60-62 cm
Extra large: 62+ cm
A more snug fit is advisable.
The makers of this glorious hat will strive to send a 'natural grey' or 'natural brown' as you may order. However, being a natural product it is possible that the hat you receive has tones of both. Pictured below: a particularly dark natural brown!