Why, yes they do. For example, SealSkinz offers this item:
Mid Thermal Olive Sock
Using a high density loop pile padded layer of Merino wool as a lining, the Mid Thermal is the warmest SealSkinz sock available and is available in both black and olive green. Mid calf length.
This model is advertised as being Windproof, Waterproof, and Breathable
Now, this is the stuff dreams are made of. I shall have pleasant ones now and buy some rain socks on the morrow. Or at least on the internet.
I’ve never seen socks that are $50 a pair. Those must be some socks.