GildanMen's Crew T-Shirts, Multipack, Style G1100OEKO-TEX STANDARD 100

Do these hide nipples

Is the material thick enough that your nipples dont poke through?

I have very perky man boobs. Will these shirts help to conceal that or will I be making myself an even bigger target for nipple twisting by strangers?

How comes my black tee shirts aren't the same as the white ones?