As a plus sized woman, I was a little skeptical about the fit of these boy shorts while ordering an XL. I do wish I could get them in the next size up for even more coverage, but I figured the elastics would probably squeeze too tightly around my waist or thighs, or they would become slightly sheer from stretching. My expectations were wildly exceeded! Not only do they fit comfortably without losing elasticity and coverage, but they are also soft and breathable making them my new favorite underwear in the drawer. I could only love them more if I could order one or two sizes bigger, though I can and do still wear the XLs comfortably. Do they ride up a little bit during movement? Maybe slightly but not more so than other brands or materials. For reference, I am 5'7" and around 275lbs.