This definitley fits on the small side, and can be bothersome during extended wear with the way the elastic hugs along sensitive body parts. I bought them with the idea of replacing a jockstrap for post-vasectomy support. They certainly did the job, but because of the fit I mentioned, by the third day, I realized part of my discomfort was from how tight the elastic line runs along the inner thigh. I'd still suggest these as a sexy undergarment, and even suggest them as post-vasectomy support, buSee full review