Kevlar® Roller Cover Braided Sleeving (Continuous Filament Yarn): our Kevlar® Roller Cover Braided Sleeving is manufactured by braiding virgin continuous filament para aramid yarns. Sleevings are available in either Dupont Kevlar® or Teijin Twaron® yarns. It has excellent abrasion resistance and high mechanical strength, rated to 300°C.