this listing is ONLY for customers physically purchasing this item in Salon Elan. If you are purchasing this vendor for the first time, and you are the low end of the size range (size 8 - medium), size down. They have 4 way stretch and after the first wear will stretch some. Small (6-8), Medium (10-12), Large (12-14). These are functional leggings! Working out is SO MUCH more fun at the gym, when you feel cute!