AND1Men's Athletic Arch Compression Cushion Comfort Quarter Cut Socks (12 Pack)

The photo and main title show/ say 12 total socks whereas the description says 12 pairs. Which is accurate?

are the black socks fade resistant? I can't describe it but there's a certain type of sock material that never fades. Its hard to tell from pictures.

Are these thin or thick ?

Would like to order a pack of and one ankle socks navy blue