After reading the other reviews I ordered one size up from what I thought I needed and very happy I did.  They fit me great, the wide waistband kept them in place all day long for me.  They fit perfectly on my legs with no sagging or bagging around the ankles and knees.  These Cecilia de Rafael pantyhose feel much silkier against my legs than the American brands.  I have fallen in love with European hosiery and will not buy the American brands any longer.  These 20 denier pantyhose are great for everyday wear.