yes, there is no pocket for it, but you can just slide it in, if you know what i mean. it might move a bit if your briefs are too loose though.
What may be a better way to keep the cup in place and to provide a soft cotton barrier between your boys and the cup itself is: wear a pair of boxer briefs and then an athletic supporter over them. Place the cup in between the boxer briefs and the supporter. A cup should fit real tight to provide real good protection in sports or work activities. So I assume you want to wear a cup primarily to enhance your appearance -- to give yourself a bigger "bulge" up front. If so you can follow the advice above. Otherwise, you should wear the cup real tight to your body.
He wears normal underwear, some may wear an athletic supporter.
A boxer brief is a type of men's under-wear. Typically a boxer but more form fitting. Consider it an in-between boxers and underwear.
You wear sliding shorts under athletic appearal for sports such as baseball or softball mostly without underwear but it's optional
Underwear is not necessary under leotards, and when it peeks out, it looks unproffessional.
underwear
Some women wear underwear under tights and some do not. Tights are made to be worn without underwear, but many people do still wear them.
There isn't specific public information about the type of underwear Andrew Luck wears, as personal clothing choices are typically private. However, athletes often prefer performance-oriented underwear that offers comfort and support during physical activities. Brands like Under Armour or Nike are popular among professional athletes for their athletic wear.
If you are a guy: under armour has some boxer briefs that breath and support you. I wear athletic hip briefs. Again, it breaths and supports me and feels comfortable. If you are a lady: under armour has some appearel for women such as support bras and shorts.
I prefer underwear, but you can wear either.
Yes, it is recommended to wear underwear under bike shorts for added comfort and hygiene.
Some people do, but most people wear underwear.
For girls, only a bra. No underwear because it will show under you leotard. For boys, underwear thatis it under tights Leo and shorts