It's good that the replacement strap fits perfectly into my Bostanten buckle. Not so good; The strap strap has a very thin layer of leather on the outside, but most of the strap is vinyl on the inside and some sort of nylon webbing that forms the center (middle) of the strap, presumably to make the strap more flexible. I'll wait to make a final decision after denigrating her for a few months. My original Bostanten band broke after moderate use which was the reason for purchasing a replacement band.