I get mine at new&lingwood, and I think they're Â£15 a pair. They also have a bargain-bin that's lower priced, presumably the same quality. The ones I buy are 70% merino 30% nylon, but you can also get 90/10 or plain 100% merino. Simply a matter of the tradeoff between warmth and durability. I find the 70/30 to be much more durable than the 100% merino ones and still good and warm, 70% is also plenty to keep the anti-bacterial and sweat-wicking properties of wool intact, so very little smell and dry all day. Never tried the 90/10 ones. Think Â£15 is quite representable, but I'm sure they can be found closer to Â£10, I just happen to really like the selection and the service at N&L, and besides Â£15 isn't bad. Edit: Wow, the polka dot ones are magnificent. I'd never wear them myself, but they're awesome nonetheless.