The extremely warming Aqual material keeps your head warm and dry even in the dead of winter. It warms like neoprene, even when it's wet, but feels softer on the skin.
The cap largely prevents the ingress of water and thus protects the ears / ear canal from water and cold.
Material: Aqual: inside fleece, outer material waterproof by PU coating
S / M (head rest 51 - 55)
L / XL (head circumference 56 - 60)