The Mountain Equipment Powerstretch Balaclava is designed for extreme cold. It is made from POLARTEC Power Stretch fabric for excellent warmth and flexibility. The balaclava features EXOLITE 210 ear guards for ear protection and warmth in freezing temperatures. Its construction includes four panels for an ergonomic fit and flatlock seams to prevent chafing and facilitate easy layering. This balaclava is ideal for sub-zero conditions.