I bought a couple of shorts for running on Sports shoes, and both of them have an inner brief layer, but no cotton on the er gusset.
Are you meant to wear them without knickers?
I promise I'm not a troll. I usually wear my Ronhill Marathon shorts with underwear, but these seem tighter and I don't want to keep adjusting myself during a run or get chafing or overheating from wearing potentially 3 layers.