509 Sinister X5 Lens 

Available in every weather-specific tint imaginable, the 509 Sinister X5 Lens makes it easy to fine-tune the performance of our bestselling Sinister X5 Goggle. Change-outs are easy thanks to the Fast Lens Loading System, and like all 509 lenses, the X5 lens features industry-leading optics for the ultimate in anti-fog and anti-scratch performance coatings.

FEATURES:
• Fog free lens technology
• Improved visibility
• 4 Vents for typical riding conditions