STUDDS THUNDER is a full-face helmet, with Spoiler and product features like aerodynamic design with higher impact outer shell and UV resistant paint, regulated density EPS, dynamic ventilation system, hypoallergenic and replaceable liner, quick release visor and chin strap. Thunder with spoiler is available in various sizes, graphics and decal options. PRODUCT FEATURES: DYNAMIC VENTILATION SYSTEM: Helps in dissipation of heat HYPOALLERGENIC LINER: Protects rider from allergies or infections arising from continuous contact with damp helmet liners due to extended riding or on hot/rainy days. REPLACEABLE LINER: Ability to remove and clean the liners for maintaining freshness over time QUICK RELEASE VISOR: Convenience to the rider for changing visors when required. AERODYNAMIC DESIGN: The shape of an aerodynamic helmet can reduce the drag pressure and prevents the helmet moving against the helmet. REGULATED DENSITY EPS: Provides maximum all-round head protection during any unfortunate impact. UV RESISTANT PAINT: Protects helmet color from fading with Long lasting and rich finish. QUICK RELEASE CHIN STRAP: Ease of operation for the rider or during any unfortunate impact. HIGHER IMPACT OUTER SHELL: The outer shell is injected with special high impact grade of engineering thermoplastic for extra protection.Studds thunder gives free mirror