This mask has cotton on the inside and a thicker fleece on the outside. I do not know the studies of not using double cotton, but this fleece is much thicker than the other one.
Good to keep you warm on the hill or on the flat land!
This mask has cotton on the inside and a thicker fleece on the outside. I do not know the studies of not using double cotton, but this fleece is much thicker than the other one.
Good to keep you warm on the hill or on the flat land!