A performance triathlon and time-trial helmet with integrated magnetic visor engineered from years of aerodynamic research and testing to optimize air flow while minimizing excess bulk and weight. Kunee is a performance time-trial and triathlon helmet featuring a smooth surface teardrop shape integrated visor and innovative corrugated side panels—all of which aid in reducing drag for greater aerodynamic performance.This helmet has been awarded a 5-star rating from the preeminent safety research team at the Virginia Tech Helmet Lab. In-molded EPS-PC structure for added strength and durability Single-piece PC outer shell Magnetically attached ventilated visor Sunglass compatible Size adjustment system with tilt and crown adjusting feature Removable and washable inner padding Mirrored visor Clear visor included Helmet case included Sizing: S/M: 54-58 cm 350g w/o visor – 400 w/ visor M/L: 58-61 cm 400g w/o visor – 450 w/ visor Complies with CE EN 1078:2012 and CPSC 1203 safety standards ENGINEERING FOR EFFICIENCY Kunee is engineered for athletes in the time trial and triathlon disciplines who demand speed and efficiency. Designed with a singular goal—to optimize aerodynamics and enhance energy efficiency—this helmet reduces drag to help you ride faster longer. Years of computational fluid dynamics CFD research coupled with real-world wind tunnel and outdoor testing have shaped Kunee’s sleek profile. Developed in collaboration with world-class athletes and experts it adapts effortlessly to each rider's body delivering exceptional performance in a variety of racing conditions. Kunee’s design is focused on real-world application ensuring aerodynamic efficiency and stability in constantly changing wind conditions. Regardless of an athlete's size or shape this helmet works to streamline airflow minimize resistance and maintain speed making it a perfect choice for time trialists and triathletes alike. Additionally Kunee is certified to both EU and CPSC standards for impact protection. SHAPED FOR SPEED Kunee's sleek surface ensures air attachment while the minimized frontal volume reduces drag. The teardrop design molds to the rider’s body creating a smooth flow and low-pressure separation for optimal aerodynamics. With its reduced volume and lightweight construction Kunee offers excellent comfort and stability allowing riders to maintain their posture and perform at peak efficiency for longer. Whether racing against the clock or chasing personal bests Kunee is built to deliver speed without compromise. INNOVATION THROUGH CORRUGATION Unlike many aero helmets that widen to shelter the rider's shoulders—adding bulk and resistance—Kunee uses corrugated side panels to keep turbulent air close to the helmet. This design allows for smoother wind transition around the shoulders and to the back of the rider without increasing the overall volume. A FASTER FIELD OF VISION Kunee’s visor extends across the helmet's sides improving both frontal and peripheral vision. The visor attaches instantly with magnetic anchors and even when removed the helmet performs aerodynamically when paired with regular sunglasses. COOL COMFORTABLE—QUIET A unique frontal ventilation system above the visor featuring a honeycomb grid ensures optimal cooling while reducing air friction. This balanced airflow enhances both comfort and performance in aggressive riding positions. Meanwhile engineered low-pressure areas on the sides reduce wind noise providing greater comfort and focus.