The airhole s4 unisex facemask allows you to cover your face to maintain your core temperature better in cold conditions this facemask has been created using extensive research and testing to ensure the fit is perfect and the airhole is in the best position to ensure breathing isn39t a problem the s4 has a nose gusset for enhanced breathing and it has an ergonomic fit to ensure it fits snugly to your face this airhole facemask has been constructed from a windproof bonded po