Surprisingly very comfortable indeed. Normally I prefer thong style underwear when training but these were excellent, I will definitely purchase more, I’m a size 10-12 and medium fits well.

Not my cup of tea. They get too much between cheeks,you know, it's not cool to be pulling them all the time. I use them for work, as my job is really high impact activity. But they don't work for me. The fabric is nice and soft, and the elastic it's great quality, just not for what I'm looking for, but that's personal choice.