Revolvers are not as thin as single stack semi-autos, and in my opinion are difficult to pocket carry. That being said I pocket carry a S&W J-Frame in a jacket pocket in the winter, mainly because it can be fired while in the pocket if needed. Otherwise, I'd recommend a S&W Bodyguard, Ruger LCP or LCP II for pocket carry. Glock 42, 43, or even a Sig P365 might be small enough as well. Larger than that not only is the size an issue, but the weight.