Ther'es a 25% off sale at
Millets where you can get Brasher, Pete Storm etc socks in wool free Coolmax.
I particularly like the the loop pile ones but have draw full of Coolmax and they are all pretty good.
I recently tried 1000miles two layer socks and don't get on with them at all - end up with the inner all rucked up around my toes - very uncomfortable.
I wear heavy socks all year as I prefer cushioning and these modern socks wick well and don't pong.