Valpal59,
The sweaters that my husband and I are wearing on the pics are called "IceWear" and we found them while visiting a wool factory in a small village in Iceland.
They are made of pure wool and have an insulated inside made of polyester and polyurethane material.It is wind proof and very warm when worn with a good sweater under it and very light...better then a big coat.
But as warm and wind proof as it is it would not be enough to only wear this sweater in temperature say in minus 20°C alone one would definetely need a warm big coat over it.
For as we were way up on the glacier the temperature dropped form 1°C to -4°C in a minute and add the windshill factor with that...so just the sweater would not have been enough for staying out for long hours.
But they are very comfortable to wear for their lightness.
Glad you enjoyed the pics.
LOA