I was hesitant to be seen with a black mask of sorts.  However, after only a few moments outside on a wind whipped cold January excursion I was very happy with my decision.  The mesh panel allows moisture from your breath to escape so as to not develope on the inner lining.  What breath stays inside provides a heat source of sort to keep the nose and cheeks warm.  I purchased the medium model and it is a bit tight, causing me to play with adjustments to get it just right.  Once in place it works as advertised!