The Choice of the TLD/Red Bull/GasGas Factory Racing Team. The SE5 debuted as one of the most advanced helmets on the market, emphasizing safety and protection for our fastest racers. Available in carbon and composite shells, SE5 integrates EPS and EPP protection with the MIPS Integra system, reducing rotational forces. An engineered airflow system beginning at the mouthpiece ensures the SE5 is as comfortable atop your head as it is on the podium. Aerospace fiberglass composite shell. Dual-density EPS. In-molded MIPS brain protection system, a helmet-integrated, low-friction layer designed to reduce rotational motion transferred to the brain from angled impacts to the head. Lightweight titanium D-rings and alloy hardware. EPP (Expanded PolyPropylene) chin bar liner featuring collarbone suspension system. Three shell sizes and three EPS sizes to accurately fit a variety of head sizes and rider ages.