Men HELP!- competition underwear?

[gymaddict22]

This is a little embarassing but my youngest son (level 8 gymnast) is 12 and he came up to me and asked me for advice on what he should wear as underwear under his competition uniform. I cam to think about it and I have NO idea what to tell him. What do you guys do? any and all help would be appreciated.
Thanks!

 

[2G1B]

My DS's competition uniform is mostly white. I have him wear white briefs. Unfortunately I haven't found any that don't have the brand printed all around the waistband, so that gets folded under.

 

[skschlag]

My ds prefers to wear boxer briefs. Form pants are grey, so he wears grey. What has he been wearing for all these years???

 

[Deleted member D3987]

oh no!

 

[krc]

Tighty whitie's are the way to go. Preferably without a super-hero on them