heads and hats

found a new web site today www.thehatsite.com
it has all sorts of useful information - did you know for instance that

• head shapes and sizes vary from country to country. In general the smallest, roundest heads are found in the far east. Western heads tend to be more oval in shape and the largest heads are, apparantly, found in Germany.
• hat sizes are measured by the circumference of the head just above the ears.
• You are not likely to find an adult head bigger that 64cm or smaller than 51cm circumference.