You'll get lots of recommendations to your question martino. Since I'm first, I carry my XDM in .40 in a Crossbreed Supertuck. Very comfortable for EDC, and very concealable. Also works for my XD9sc. Kind of a 2fer. You will probably end up trying out a few and end up with a drawer full of 'em before you settle on one. So one vote for the ST!