The bottom of the each leg slides up and sometimes digs into and strangles me. I love the Exofficio boxer briefs, but these "sports" version is not as comfy. The material feels super thin, which is nice for staying cool and light, but this also means there isn't too much "grip" holding these in place causing a bit of "ride up." If you're looking for comfy undies, try the ExO boxer briefs (original) instead. They're much more comfortable and don't ride up.