If you are thinking of having children, then don't get these. These, like Jockey underwear, cause the boys to ride up tight against your body causing low sperm count. Take it from someone who's been there and tried to have children for 6 years before someone told me to switch to boxer shorts, where the boys actually hang down to cool off, and as was designed for this purpose by God...or your theory. Sperm can only be created when the boys are a few degrees lower than normal body temperature. I wonder if fertility doctors give that advice for free?
And if children are not an issue, then go crazy and bind them up tight like the Japanese male actor who was made famous by playing Madame Butterfly and was married three times, and no one knew he was male until his death. Ouch!