The LS2 FF901 Advant X Carbon Horizon II helmet in silver/gray, size XS, is a modular helmet system designed for urban and street motorcycle use. This helmet construction combines the all-around protection of a full-face helmet with the practicality of a jet helmet through its flip-up chin guard mechanism. Made from multiple layers of carbon fiber, the shell provides excellent impact energy distribution while maintaining a lightweight profile of approximately 1,150 g. The helmet meets the ECE 22.06 safety certification standards for European road traffic. Key safety features include a multi-layer EPS inner lining for optimal shock absorption and a micrometric closure system on the chin strap that can be operated even while wearing gloves. The ventilation system incorporates two upper air inlets, a chin air channel to reduce fogging, and exhaust openings to expel warm air, contributing to rider comfort. The interior lining consists of removable, washable cheek pads with an emergency quick-release function, made from hypoallergenic, breathable materials. The optically high-quality polycarbonate visor is scratch-resistant and features an integrated, retractable sun visor with UV protection. The helmet uses a QRS quick-release visor system for easy swapping and an auto-up/auto-down mechanism that simultaneously unlocks both the visor and chin guard when switching between full-face and jet helmet configurations. The chin guard opens 180 degrees to protect the neck area and features a simple push-button activation mechanism. Available in a matte silver and gray finish, this helmet offers practical functionality for riders seeking reliable protection with modular flexibility.