I rarely am as happy with a pair of sox after they arrive as I am in the waiting stage. This, is a great pair of sox. After wearing all day long, on my feet, just pulled up over bare skin, the calf of the sock remains just where I pulled it to this morning. There is no dent where the upper calf band rested. No discomfort noted all day long. No slipping at all. Highly recommended! I am buying more.