I'm a size 14 and purchased an XXL. Fit perfectly, and I really like these bottoms. The only reason I didn't give it 5 stars is because I feel like the front is a lower waisted then in the photo. I took the risk when I made the purchase because I saw the pictures everyone else had posted and I could tell the front didn't go up quite as high as on the model. But these will be perfect so that I don't have a big full bottomed diaper ass like most plus size bottoms! Makes your butt feel great :-) would like to have a pair of these in high-waisted.