Actually I just found out over the weekend I bought a couple last year from Arden B on sale(20 and 15 but woulda paid more) that are simiar in black. I forgot I bought them.
Totally worth it for me because I'm always cold and I wear black with everything. They are also partially wool and very warm and thin at the same time. I usually wear them with shorter dresses in the winter with my boots. I wear them with jeans too and a tshirt when I've run out of clean sweaters.