Giant Rivet Mips Time Trial Helmet. AERO SUPREMACYBorn from the demands of elite-level TT and triathlon competition, Rivet Mips delivers watt-saving aerodynamic performance with pro-tested fit and top-tier safety. Featuring wind tunnel-optimized shaping and airflow management, Mips Air Node angled-impact protection and an interchangeable visor system, the Rivet Mips is the sleek, safe and stylish way to shave seconds off your time.FeaturesCFD-modeled and wind tunnel-validated aerodynamic design saves 6.4 watts over the previous modelLow-drag dual vent system with internal airflow channelingStreamlined profile for minimal drag and maximum speedProprietary central dimple shape to optimize airflowDetachable aerodynamic visor with UV protection and anti-fog coatingDual-use visor and rear aero fin system optimized for time trial or triathlonIntegrated Mips Air Node rotational impact protectionThree-position adjustable height fit systemComfortable lightweight strap systemFidlock® magnetic buckle for secure one-handed fasteningSpecificationsSizing: S (51–55cm) M (55–59cm) L (59–63cm)Weight: 503g (Size M with Visor) / 423g (Size M without Visor)Rivet Mips TechnologyBorn in the wind tunnel and proven under race conditions, Rivet Mips brings top-tier aero performance and advanced safety together in a sleek, stylish aero design. tradeinn Bikeinn