There's a particular kind of annoyance in having to hitch your tights up every twenty minutes. Whether you'd call it rolling down, sagging, or just tights that won't stay up, it's one of the most common tights complaints, and it's often fixable. Here's why it happens and what to do about it. Why Tights Roll Down or Sag One of the most common causes is sizing, though not always in the way people assume. Tights need to sit at the correct tension across the waist and hips. If they're too large, ...