Having tried numerous pairs of compression/tight shorts to prevent chaffing on the longer runs and failing, I was intrigued with the promise of a chaff free run. From the first test run, I have fallen in love with these. They have been tested on short 2-6 mile runs and longer 13-18 mile runs and I have only good things to report. I have felt dry throughout all of the runs and not one bit of chaffing to report. They are very flexible and comfortable, offering a seamless, label free ride. Latex free and offering anti bacterial properties too.