I thank everyone who contributed to this thread, hopefully the info may help someone else. For clarification the circulation issue is Raynaud's disease, I'm sure others here know what I'm talking about. After some hemming and hawing I went with the Castelli gloves, and Chicago's first really cold couple of days they performed better than expected. In high 20's my hands stayed toasty and I didn't even have to bother with a liner glove. For $50 the Castelli Vincente gets my thumbs up, thanks again!