We all know that most body heat is lost through your head. Thats why Castelli created the Stelvio Beanie to be a stylish barrier against brain-freezing cold. The beanie blends wool & acrylic fibers which creates a soft fabric that insulates without being itchy. The Castelli Stelvio Beanie is great for temperatures as low as -10 Celsius Its available in a one-size-fits-most size & in the colors White/red & Black/red.