I'll put them on my wishlist, but it's hot where I live so I'll probably get by with mostly cotton!
Those "blacksocks.com" OTCs really are great. They don't have much of a selection - black, grey and one "trendy" colour a year (raspberry right now, which I love). They're also a bit heavier than the Mazarin ones. But for the price, they are awesome quality, and they never fall down. At all, in my experience, even after a few washes. For a broader colour selection from Mazarin, go to meschaussettesrouges.com Order a few pairs - when they arrive it feels like your birthday, you'll see why!
The name of the site you sent me to is enough to sell me on it (it means "my red socks" in French, of course).