Waterproof, clear Race Rainblocker (RR) material with taped and sealed seamsStretch panels through the arms, back shoulder and sides ensures a snug fit at speed while not limiting flexibilityBib-style fit with Velcro panel running through the crotch and attaching to the front of the jacketElastic sleeve cuff ensures a snug fit on any size suit sleeveBack of RR jacket is cut to fit a wide range of speed humps and specifically any Cortech speed hump 2013 Model