The Kaast is Oakley's first dual lens eyewear that uses Physiomorphic Geometry, a technology introduced in the Kato and allows lenses to be made rounder, which offers more possibilities for creative designs. Furthermore, the temples are made of O-matter, which ensures that the glasses are light but still sturdy. On the edge of the nose there are nose pads consisting of Unobtainium, which means that the grip never decreases.
