They fit very well and are very comfortable. Fit a tiny bit snug but comfortably, not tight. True to size according to size chart. My kid is xl and they got the same size.

These are my favorite workout/running undergarments ever. They're comfortable, moisture wicking and absolutely indestructible. I wear these for long runs in the high heat and humidity of central texas, and they wick moisture nicely.

Very comfy with a nice athletic look. Light weight, comfortable because there is no tag.

Have gravitated from my * hot and wet (non-breathable) * to my * wick-away *. They stay dry and no chaffing. They wash nice, without stretching so far.

The poise microliner stays in place through 26 postures and 90 minutes of sweat pouring off my body. I also sometimes roll the waistband down, and you can do that with these if you want to and they'll still stay put. They show no sign of wear although...  Read More

For those of you used to wearing hip-hugging or lower-rise underwear, these are not for you. The elastics around the tighs are barely elastic, which is why they don't stay put. They fit true to size, but don't buy if you're looking for seamless.