Money Belt For Travel With RFID Blocking Sleeves Set For Daily Use B

If you wear it inside your clothes wouldnt people see that there is a bump were it is?

The clip on this looks flimsy, how strong is the snap clip?

Can you tell if the zippers are detectable with a metal detector? Aliminum would be ok but steel will set it off.

Does the money belt have rfid blocking by itself or do you have to use the sleves too?