You did not state how "concealed" you wanted to be or for what reason. I have been carrying a full sized 1911 IWB at about 2:30 position for several years, jeans with loose T-shirt just draped over. Only time any comment has been made was pumping gas, I was in a hurry getting out and the guy at the next pump said "1911?" Guess undoing the seat belt had flipped my short tail up and over. I was not paying attention. "Yep" and fixed it. Ha Ha