I have almost only this underwear, initially only for testing but completely changed over the years and only buy those. As I leave sometimes wash my underwear in the washing centers or when I'm abroad (then with the army) this had to wash also on local guard centers. I have had the experience that other products are also cheaper in quality subside in this it is not so, so far these underpants have been through everything and hold. I think I had as yet no reasons of quality estate dispose.