I purchased what was said to be the right size. I purchased size 9-11 for women's shoe size 4-10. I'm a 7.5 The foot part of the sock is WAY TOO BAGGY. A sock should fit somewhat snug, not sloppy. I would recommend buying a smaller size.
Pros
Bought them for homeless outreach in Houston. Affordable. Appears to be quality product.
Cons
The sock material is not resilient and starts falling apart after a few washes