Oakley Holbrook XL Sunglasses alpine touring skis Aligning the Stack Vent in

Aligning the Stack Vent in the helmet with the center vent of your goggles helps to keep them clear and fog free while maintaining total helmet and goggle integration

solid traction and the most secure attachment system to get you higher

spacers & HIC shim

Lens Type: Cylindrical

Oakley Holbrook XL Sunglasses alpine touring skis Aligning the Stack Vent inLens Prizm Lens [Select Colorways] A revolutionary lens technology that fine tunes vision for specific sports and environments. Prizm lenses enhance contrast to better let you see obstacles like rocks and potholes before they reach out and bite you. High Definition Optics High Definition Optics (HDO) is a collection of patented technologies that allow Oakley eyewear to meet or exceed the testing standards of the American National Standards Institute