Bought this for a ski trip in Vermont. Somehow we wound up going during one of the coldest weekends on record (-25 degrees Farenheit at the base of Jay Peak) and this kept my face warm on the slopes all day. I like that the part that covers your mouth is a different material than the rest because it didn't get soaked from breathing through it. The mouth area of the mask did eventually freeze (any mask would when skiing in those conditions) but there was just enough room between the fabric and my mouth that the cold fabric didn't touch my skin and my breath kept the skin around my mouth warm.

Also wore this to a single-digit Eagles game (GOOOO BIRDSSSS) and it kept me warm the whole time.

Definitely recommend this product!