The surface material of the popular and high-quality Nordic Heater is waterproof, windproof, and breathable. This model has been part of Fjällrävens range for many yearsand theres no end in sight! Its hard to find a warmer winter headwear than this. The ear flaps feature small openings that make it easier to hear surrounding sounds. - The polyurethane coating on the outer fabric (on the inside) also protects against rain or sleet showers - The ear flaps can be fastened under the chin with a buckle when needed - Acrylic faux fur provides extra warmth - Small openings at the ears can be covered or opened using separate flaps - Sizes: (size vs. circumference of head): - S=54-55cm - M=56-57 cm - L=58-59 - XL=60-61cm - XXL=62-63cm