In khakis, or "relaxed fit" jeans, it's just fine. I think it would be uncomfortable in tight jeans, or on horseback or motorcycle. I would also stick to a small pistol or revolver. A 1911A1 will fit, but it's uncomfortable, makes you look like a pervert and carrying there "Cocked and Locked" would make me very very nervous.
So9
Would a Colt Defender be small enough? I'm actually looking at the Para Ordnance PARA CARRY C6.45 LDA which is a single stack, measures 6.5" length by 5" height, I think its smaller than the Colt Defender.
My current KelTec P11 is easy to carry this way, but I want a .40 or .45. The SigSauer P229 is too big, I'm afraid, to carry this way.