I appreciate that modern kevlar® garb is good and proven, but I still find it hot and imposing to wear. Nothing yet beats leather IMHO - more so in terms of protection, convenience and presentation - and leather comes in more colours than just black. Neither Knox® nor leather helps much to dissipate impact energy, though. Lastly, Knox® is hardly cheaper than leather and conceivably not nearly as long-lasting. I still have a 1982 leather jacket that I can and do wear, whenever I manage to fit in it occasionally - and it is not that my lats will not fit )-: