Viper - I purchased mine a few weeks ago too and my impressions are similar to yours. It hasn't been very cold here at the house and while I'm certainly not cold while wearing it, I don't feel as warm as expected. I unfortunately won't have a chance to test it in really cold weather until January, but I'm hoping with layering it works as well as promised. Maybe it's a similar concept to the merino base layers, feels comfortable in a wide range of temps. It's hard to imagine something so thin could be warm!