I can't think of a chicer way to stay warm right now than velvet leggings. They're cozy and luxurious, a more mature cousin of the liquid legging. These Alice + Olivia Velvet Leggings ($128) are one of the many I've spotted. They would look good under dresses, but better on their own. I prefer not pay over $100 for them so I found a cheaper version . . .
To see the look for less,
These INC International Concepts Velvet Leggings ($39) are slightly cropped but they're equally cute. I especially love the way they hug the leg so tightly. I can see them working well on a romantic date — just imagine the softness he'll feel if he touches your leg! If you don't love the crop, either wear them with tall boots or layer cozy socks over them.