New Authentic Costa Sunglasses-Diego -Matte Gray Frame/Green Lens-580G color-chartreuse this model features CPM S45VN

this model features CPM S45VN blade steel and textured black G-10 scales

In his latest Spyderco collaboration

Visor: Curved

Its tough fiberglass-reinforced-nylon (FRN) construction minimizes weight and offers the high-traction advantages of our Bi-Directional Texturing™ pattern

By positioning the line-eye close to the body

New Authentic Costa Sunglasses-Diego -Matte Gray Frame/Green Lens-580G color-chartreuse this model features CPM S45VNOur most advanced sport performance sunglasses yet. Diego features an innovative vented spring hinge system to maximize airflow and enhance fit, plus sweat management channels that wick away moisture to cool and ensure all day comfort. Diego includes flexible, strap ready temple tips, and top and side shield details to eliminate light leak. Paired with coloring enhancing polarized 580 lenses that provide 100% UV protection, Diego is the next evolution