The airhole s2 facemask is ideal for sub zero temperatures and has been constructed from airhole39s super resist fabric this windproof bonded technical polyester offers insane protection from the elements and the inner 3rd layer membrane provides complete protection from the wind the super soft fleece inner is exceptionally comfortable on your face and it has anti hair pulling velcro which attaches behind your neck for a custom fit this airhole facemask has an ergonomic shape t