I'm looking for a new upper body armor (level 2 back, chest and shoulder) that goes under my jersey and fits with my leatt brace that comes over the jersey. I now have the TLD shirt, but my opinion is that the back protector is to thin. I ordered an O'neal zero gravity shirt. Great back protector but my leatt brace don't fit over the armor, only under the armor (and then I can't wear my jersey).