SM3 Youth Radium Visor YGroup_3217023 plus dual thermoplastic patella shells

plus dual thermoplastic patella shells and a slip-joint chassis for abrasion resistance

Side ventilation for enhanced airflow and breathability

Two-layer suit incorporating knitted stretchable panels for maximum comfort and excellent breathability

Detachable thermal vest with 80g insulation at the front for effective cold weather performance

it features Nucleon Plasma Technology—an eco‑friendly bio‑based blend with high‑performance polyurethane—plus extensive perforations and ventilation channels

SM3 Youth Radium Visor YGroup_3217023 plus dual thermoplastic patella shellsReplacement visor for Alpinestars SM3 Youth Radium Helmets. Alpinestars official replacement parts.