So happy with these socks. Even though they have a little elastic at the top (that’s why it’s called ribbed top), I was able to snap them out and still wear them. These are truly wonderful socks. 5.0 out of 5 stars purely 100% cotton...PERFECT for sensitive skin/latex allergy Reviewed in the United States on August 2, 2021 TRULY, 100% cotton socks (NO elastic/latex/synthetics) are nearly impossible, if not completely impossible, to locate in the US, so, grateful to find these! (my 3rd set from this VERY prompt UK seller). They are thin and breathable, comfortable. For anyone who wants thicker socks for cold winter months, which invariably contain allergens for some of us like polyester, wool, latex/synthetic rubbers, etc, these would also make a great protective liner under those. Very happy to have found these. They may not be as durable as thick socks would be, but such a small price to pay for skin health and comfort. I would especially recommend these to people with latex allergy...very safe.