St Benedict medal.

A powerful weapon against the devil.Much needed today.

 

A big fan here! I carry a medal on my neck chain, a coin in my wallet and will now buy this shirt:

 

awesome T-shirt,I want one, would a priest bless it? or would that not be proper?

 

I believe it is enough if you wear it and stay in front of the priest when he's sprinkling holy water.
This is site of the shirt: http://vestesacra.com/pd-48bbf-medalha-sao-bento.html?ct=30591&p=1&s=1
The only problem is that it is in Portuguese