No it has no hammer strap or thong. These holsters are made to fit tight enough so that you don't need one, so you can draw quickly enough to defend yourself. It is tight enough that I have to turn it upside down & shake it hard a few times to get it to fall out.(over a mattress of course) The flap is for weather protection only. It tilts forward so that you can still draw quickly without unsnapping anything,it in no way retains the gun. This is the way I prefer to carry in bear country. I actually love this holster, Ive switched to a bladetek holster that I can unclip from my backpack without taking off the pack, but it retains the gun the same way the S.R. does. I use to carry in an old holster I had modified with duct tape with no retention straps, that fit much looser than this one, & I had plenty of confidence that it wouldn't fall out because of the way the gun sat so deeply in the holster. As Ive said, if you don't like it, Ill refund your money.
