When I ride in the winter, my leather jacket has a pistol pocket that fits my Glock 26 nicely.
In spring and fall I ware mess jackets that have a zipper pocket that holds my Kel-Tec 380 or when it gets to hot to even ware those jackets, I carry the little Kel-Tec in a nemesis holster in my back pocket.
The Name to Trust in the leather industry!! - Barneys Leather - Homepage
Barney leather has all kinds of vest and jackets with build in pistol pockets.