I have the gloves now for several weeks and am completely satisfied. Even if I could use this winter only a few times, felt my icy hands earlier after a short time warmly. The fleece glove that is used inside the mitten as a kind of glove reinforces the Wärmeefekt significantly. The gloves keep the hands as warm as you would also wish for a good glove. However, they are perhaps a little exaggerated to me as a "Regular Guy". Not only the size that makes the insulation to the thermal power. It could be used, I think even the colder regions of the planet well explore. So: The gloves serve their purpose fully, perhaps a bit too good for Germany.