I was given some Sealskinz waterproof ankle socks years ago. I've used them a number of times with non waterproof summer boots and they are 100% waterproof. The problem I had with them are my summer boots are quite tight fitting and with these socks on there isn't quite enough space left in the boot to be comfortable. They are also very warm, so no good in the summer, but October-April would be fine.
If I was on tour and had to use them every day for a week they would honk and if you wash them I don't know if they would dry out that quick overnight unless you left them on a radiator.
The ones I have probably are made any longer, but in this video the guy mentions various warmth ratings. Not sure how much they paid this guy but he was impressed as well. The video shows the materials which gives you an idea of what they are like bulk wise.
http://youtu.be/LgALP2FO70U
If I was on tour and had to use them every day for a week they would honk and if you wash them I don't know if they would dry out that quick overnight unless you left them on a radiator.
The ones I have probably are made any longer, but in this video the guy mentions various warmth ratings. Not sure how much they paid this guy but he was impressed as well. The video shows the materials which gives you an idea of what they are like bulk wise.
http://youtu.be/LgALP2FO70U