I purchased a PER62 back when they were on sale, not too long ago. I wanted a jacket that was set up for a faux collar, teacore leather and without under arm footballs. My PER62 is an XXL, I’m 6’2”, 220. So, I emailed Jerri and was told to order a size 50. It fits perfectly on the PER62! It is an extremely well made collar, just like their jackets. Of course, it just transforms the whole look of the jacket, but the best thing is its warmth and being a great wind blocker. I live high up in the Rockies, and I wear my Schott leather jackets all winter, unless it’s colder than 15 degrees and snowing, I might put on a parka. I also own a black P613S, PER70, and a PER41, without collars. This collar will definitely make a difference on my PER62, with the extra warmth factor this collar provides. When I ride my Harley this fall with the 62 on and wearing it this winter, it’s gonna help out considerably. Thanks Schott for another excellent product!