Got them in the mail yesterday, threw them on for a ride this morning, and immediately took them off. I got the M/L since I'm 6' 175lbs, and they are so loose they look comical. The ankles have enough slack I could probably take two inches out comfortably.
The silicone on the top doesn't do anything to hold the top up. I'm pretty bummed. The material feels nice and the pattern seems like it would be nice and warm, but it doesn't stay in place, so they're useless.