We just received these, so I can't speak to the durability issues of this item, but given a lot of people are likely freezing and needing to order right away I will give a brief review.

The material is fairly heavy of fine ribbing and stretchy similar to what is used on the sleeve ends of knit clothing at the wrists, ankles and/or waistband. It's thick via a double layer sewn together around the edge of the face opening and in a cross pattern at the top, leaving a bit of airspace in between layers to trap warm air lift moisture away from the skin and after a few minutes of wearing it indoors, I'm starting to sweat and need that moisture lift.

It fits me well, a female with a large head circumference and a pony tail in back. I can see very adequately but my face is well covered and no more skin is exposed than I really want, a pair of ski goggles would definitely cover the rest. I have almost three year old twin boys,  w large heads (don't know where they got that from) and they also fit them pretty well, including covering the nose but allowing a little airspace in there. I think, if you were in a pinch, you could pin the back with a safety pin to adjust it to a smaller head or give it a few quick stitches in back to take it in.

It states it's made by Tan Club in Vietnam of 100% acrylic with instructions to hand wash and dry flat. Not high on my list of things to do and will go for my norm of a front load type washer on gentle and dry on a rack. Hope that helps.