I initially loved them. They aren't as fitting as some of the previous generations which was somewhat a bummer but within hours I had adjusted and they were great! They didn't slide as much as years prior meaning... no butt crack in sight, which is a big thing for me as I'm a large guy standing at 6'6 and weighing in at around 350 currently (198cm/159kg).
Now, my issues came after only about 2 maybe 3 wears and I wear these things as underwear so I'm not using them gym use only, but they aren't getting any real strenuous testing, yet they 2 of the 5 pair I've purchased have already split on my inner thigh.
Had it not been for those 2 occurrences, I would have ZERO complaints about them, but seeing that it's been around a month since I've had them and thrown them into rotation with my older pairs and the older pairs are still holding up. Sucks to be down 2 pair within a month, but in terms of fit, and flexibility of the items, 10/10 but the longevity is already in question for me.