Calvin KleinSocks - Cotton Blend Lightweight Mid-Calf Althletic Crew Socks (4 Pack), Size Shoe Size: 7-12, Blue

Are these 100 percent cotton? I don’t see a list of materials. I don’t want petroleum products on my feet.

I need dress socks with no elastic in top. I have had them before and they are wonderful. No swelling in my ankles???

What is the exact blend of materials?

Are these dress socks or Athletic socks? The description states dress socks but my shipping notice says athletic socks, I need dress socks...