This beanie is made from soft oeko-Tex certified Italian merino wool. 
It is knitted by hand and is soft, slightly silky and seamless.

EU / US sizes:

XXXL - 64 - 8 
XXL - ~ 62,5 - 7 7/8
XL - 60 - 7 1/2
L - 58 - 7 1/4
M - 56 - 7
S - 6 3/4