I've been using Gorgonz headphones since 1995. Before I started using them my ears never stayed warm which means my whole body was cold. They work in the wind, in a snowstorm and in sub-zero temperatures. when they somehow broke while traveling recently I couldn't wait to order new ones. They arrived early which was just in time for me to be outside on a very chilly night. I wouldn't use any other headphones, even those that claim to be the same. Thank you for making this product. That was a great comfort to me.