I have the same model DeSantis rig in two sizes, medium for a Kel-tec P-11 and a bigger one for my Detonics. Not sure the model. It's all nylon with a thumb break, but does at least have fake lambswool under the gun. it also has an attachement for a support strap, which I've never needed.
As long as I keep it tight enough to not slide down to my ankle bone, it feels great. It's even secure when I take off running after my kids.
I believe, if ankle holsters cause you circulation problems, don't blame the concept of ankle carry: blame your health. Maybe it's a wake-up call to see the doc and jump start your cardio program!!!
