Versatile safety design: This bike helmet has multiple protection modes with a detachable chin guard and a convertible fullcoverage shell. 360 impacts protection: Fullshell structure reinforced by a density buffer layer reduces injury risk with 360 professionalgrade protection. Allconditions eye guard: Quickdetach visor deflects sunlight, dust, and debris without affecting aerodynamic performance. The antiglare adjustable shield provides adjustable coverage angles for visibility in changing environments. Breathable customized fit: Strategically angled vents channel airflow across the helmet interior, minimizing sweat accumulation. The smart fit mechanism conforms to your head shape. Use scenarios: Daily urban commuting and city riding: Protects against sun, wind, and dust while maintaining comfort and visibility in variable lighting. Weekend rides on mixedterrain paths: Eye guard and fullshell protection help manage glare and debris at speed on diverse surfaces. Longdistance or variableweather rides: Breathable fit and adjustable visor support comfort and clear vision over extended periods.