Oakley holbrook™ re-discover collection sunglasses offer a square frame crafted from o matter material to ensure comfortable wear. The polished dark jade opaline frame complements the prizm 24k polarized lens treatment, while the key bridge adds an iconic touch. Elevated by its unique color, this square-framed model is made of o matter material and features prizm 24k polarized lens treatment for optimal vision in all conditions. Available with lens contrast enhancement technology. - frame material: o_matter