I have 2 pairs of Prana JD shorts and they have lasted me through 100+ yoga classes; Bikram and Vinyasa. I have a 38 inch waist and the Large fits fine. Another reviewer also said the large fits a 36 inch waist, too.

The product stretches enough to support even my midsection without sliding down. They are snug without being too tight. Allow better flexibility than gym shorts. I highly recommend this product.