Bulk under clothes

Nope! No one will ever notice!

 

Ask yourself this... Does anyone ever pay attention to the slight bulge in the trousers that most men have when they're not wearing a cage? Ok, occasionally they might, but how many times do they then think "Oh, maybe he's wearing a chastity cage?"

The only people who would think that are those who are already in the lifestyle, or have fantasies about it. It's almost impossible to determine what's under clothing unless it's either very thin and tight, or you've seen that person naked and know how big their junk is.
Unless they're familiar with the chastity lifestyle, even if they notice a 'bulge', clothing is normally loose and crumpled down there, most people wouldn't give it a second thought.