I was wearing the socks a whole week, crossing the alps, with heavy rains and lots of sun and the socks kept a perfect temperature and stay fresh!
The sizing on the clothing is rather a small fit and I had to return a lot.
The quality of the longsleeve was a little bit disappointing. Doing trips with gear and Velcro parts, the fabric of the long sleeve was damaged quickly, which does not happen with e.g. Rapha long sleeves.