The SE5 Composite features an aerospace fiberglass composite shell, lightweight stainless-steel d-rings, dual-density EPS, in-molded MIPS brain protection system, EPP chin bar liner with the collarbone suspension system, quick release XT2 3D cheek pads, a Dri-Lex comfort liner, and smart shear plastic visor screws for easy impact break-away.

Troy Lee Designs SE4 Carbon Fibre Helmet 
One of the lightest and slimmest systems and the most integrated by MIPS. Integra intends to reduce rotational force to the head on certain angled impacts. Superior ventilation and integration highlight this design in the SE5.

The most significant styling change in the new SE5 is in the chin bar of the helmet. Increased airflow to the face is improved with the large intake front mouthpiece. Side gill intake louvers also force airflow to the front of the face for increased ventilation and cooling to help keep rider fatigue to a minimum.

EPP collarbone mitigation relief section. EPP (Expanded Polypropylene) section located on the lower side of the helmet provides additional impact relief for the upper shoulder/collarbone area.

Patent-pending safety that combines EPS low-density impact foam for low-speed energy management / co-molded with more firm EPS layer for high-speed impact protection
Bell Motocross Helmet

Troy Lee Designs SE5 Composite Helmet features: