Smith Attack MAG MTB Matt Iceberg Chromapop Platinum Mirror Helmets The STI shifter buttons are

The STI shifter buttons are powered by coin-style CR1632 batteries which last for approximately 1

With ECE marking

Fits maximum wheel dimensions (in)

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as well as an even softer density

Smith Attack MAG MTB Matt Iceberg Chromapop Platinum Mirror Helmets The STI shifter buttons areVision ChromaPop lenses enhance contrast and natural color to make the details pop Smudge and moisture resistant coating for easy cleaning and clear optics Larger, maximum coverage lens features ventilation channel for fog free vision 100% UV protection Fit Integration Medium fit, large coverage 7x4 toric lens curvature Two position adjustable nose pads Frame Lightweight, flexible and durable TR90 frame Smith MAG lets you change lenses quickly