My teenager daughter showed me a picture of someone wearing a sport-Rolex on a perlon strap. It was sooooo niiiiicee! I remember my own father using those straps in the 70ies to his watches. Furthermore, I have bought quite a few first owner watches still on a mouldy perlon strap. Never struck me for a second that they could be popular again! So what to do, order a bunch to experience it first hand. And guess what, I´m very pleasantly surprised! Not only look good, extremely comfortable to wear too!