* Aerospace-grade fibreglass outer shell * Equipped with the MIPS® Brain Protection System
- a low friction layer integrated into the helmet that reduces rotational movement on the brain in the event of an angled impact on the head * Ventilation channels & head padding work in unison to promote airflow through the helmet Article: Troy Lee Designs D4 MIPS Composite Volt Downhill Helmet, blue, Size S Article: Troy Lee Designs D4 MIPS Composite Volt Downhill Helmet, blue, Size S, blue, Size S