I bought this to have a good way to carry my PPK/S when my Sig P229 in an IWB holster just won't work. In my research, it came down to a choice between neoprene and nylon. I decided neoprene was probably a more secure and comfortable way to go. I have been very happy with my choice. It fits well and stays secure. The velcro strap keeps the gun in place - I don't worry about it when I'm walking. Because of the thick sheepskin pad, I don't feel any discomfort at all. I like it so much and it works so well that I bought the companion cuff/mag carrier for the other ankle.
This review was written in the old system and had content requirements that are different than reviews written today.