ABOUT NORTHWIND Blowing in from the future of sunglasses, Northwind brings a head-turning new look to the Zeal See Grass collection.This wide-brow, angular design is crafted in a closed-loop system from recycled plastic and agricultural grasses in a revolutionary process that combines sustainability with quality, durability, performance and style.With unique color patterns in every frame thanks to the infused grasses, and the mind blowing color, clarity and contrast that the Ellume Polarized lenses lend, Northwind blows the doors off what you thought a sunglass could be. Zeal Northwind Sunglasses