I purchased this for my fiance to use during work when he has to be outside. This winter we have experienced a lot of single digit and sub zero temps with lots of wind. He is very happy with this. He said there is a special material over the mouth area so he must breath through his mouth, If he breathes through his nose, his glass fog up, but not nearly as bad as with other balaclavas we have gotten him. We will be ordering 2 more of these for him...he has a full time job plus he has an excavation company and a pit cleaning company and he takes care of our 2 farms. So they are very needed. He is very happy with this product. He is a large man 6'5" & 260# and it fits comfortably, not to snug, but good enough it dos not shift around on him when looking behind himself off the tractor feeding cows hay or when operating the skidsteer and backhoe. Very well constructed with strong material. We have NOT received any form of payment or reimbursement or discount for this review!!