ok, so I'm new to guns. I've been looking at getting a glock 19 or xd9 sub compact. I ruled out the sig p250 after feeling it, .. I haven't felt the xd yet. My boss told me that I could get a single stack sig for 500 used at a local shop. I had pretty much ruled sigs out because of the higher price point. Anyway, to get to the point, from my googling it looks like the P225 is the single stack that would be in that price range. Sigs website is hard to get good narrowed down information about models without looking at each one individually.
I degress, ... Single stack appeals to me for slimmer design for concealment. What models are single stack? What sigs are good for concealment?

