From a smoke free pet free business Fit is not guaranteed.  Items are stated with the size recommendations by Jockey who makes and produces the products.  Some are size ranges.  Remember that the fit may vary depending on how you like your fit (loose, snug etc)  Items that are opened, removed from package, unfolded, tried on or worn are not eligible for returns or full refunds.  

Size 5 fits 28-29" waist and 36-37 inch hips

size 6 fits 30-32 waist and 38-40 inch hips

size 7 fits 33-35" waist and 41-43 inch hips

size 8 fits 35-37" waist and 45-47 inch hips

size 9 fits 38-41" waist and 48-50 inch hips

size 10 fits 42-44" waist and 51-53 inch hips

To find your size:

Waist: Measure around your natural waistline, keeping the tape comfortably loose.

Hips: Stand with your feet together and measure around the fullest part of your hips..