These are adidas running tights. They do not have an inner brief. They have side pockets and a small pocket on the back for keys, etc. I wore separate underwear and then these tights, so they were not worn directly against the skin. In my subjective opinion, there are no noticeable stains or damage, but please consider this a used item and only purchase if you understand that. Size: Men's S, Black Waist (laid flat): approx. 28cm (stretchy) Marathon Adizero Adios Pro Hakone Ekiden Aoyama Gakuin Kokugakuin Gender: Men