Shoulder Protector REVIT RV13 blue. With SEEFLEX™ technology, the days of being uncomfortable on a motorcycle because of the protections are a thing of the past. The term SEEFLEX™ is born from a synergy of next-generation materials and cutting-edge manufacturing techniques that gives SEEFLEX™ protectors their unique combination of safety, flexibility and breathability. This innovative technology allows SEEFLEX™ protectors to pass the most demanding level 2 impact tests stipulated in EN1621-2:2012 in any and all conditions and at any and all required temperatures.