Manufacturer's Description: Developed for world class athletes and all women demanding the highest performance in a helmet. Lyric X delivers performance, style, safety, and a perfect fit with MIPS® technology and direct Level 1 ventilation. Ultra-light weight ACT combines In-Mold multi-shell construction with overlapping PC shells and injection vent rings for durability and protection. X-Static® fabric keeps it fresh and Fidlock magnetic buckles keeps it easy. The Lyric X is audio ready featuring detachable Covert Ear Covers.