Ive been walking and starting to jog to get back in shape. I took my glock 27 one time and it was too heavy to wear on my hip holster. My shorts fell off more than usual, I have no ass. Anyways Im considering a shoulder holster but I have a few concerns. Ive seen models with the straps that go from each side of the harness down to a belt loop. My first question is how important is that strap that it is attached? I ask because I will be wearing basketball shorts,no belt. When I jog will the holster bounce off me? or will he weight of the holster/gun/spare mag and my arms keep the holster secure? Im assuming it will be ok since there are models that do not have the belt loop strap. I was thinking I could sew suspender type clips and clip them to my shorts. That also may help my shorts from falling down like they already do. Im looking at some on ebay. they less expensive models are just under $20 up to $170. Im surprised when I searched shoulder holster on gt I didnt find any results.Id appreciate any input. Thanks!