Put them on and went straight into a ten mile offroad run. After previous runderwear purchases I have complete confidence in the brand, Forgot I had them on after 15 mins.
wore them twice this week and they do exactly what they say, no rubbing or 'riding up' comfortable and you don't realise you're wearing any!
I've returned a size L, for exchange to XL. The L was tight for a 34"waist.
Customer service great so far.
Very comfortable, soft and lightweight, but they cut a little into the top of my thigh because they are elasticated.
I have been using runderwear for several years, seriously comfortable running underwear.