Whoo Hoooo No cotton gusset. I hate a soggy gusset! When cotton gets moist from sweat or whatever - it stays wet. These have a breathable gusset area that is microfiber so it dries quickly if moisture comes along.

I ordered a size up because I do not like things overly tight. They do not ride up or roll down. I am 5'7" 150 lbs and got an X Large.