Oakley si m frame® 3. 0 with gasket ppe sunglasses are a versatile choice for any mission. The matte black o matter frame is designed to withstand the rigors of tactical operations, while the shield shape provides unobstructed vision and protection. These glasses feature a gasket that can be removed or replaced, allowing you to customize your fit and comfort level. The standard clear lenses provide excellent visibility in low light conditions, making these shades ideal for night operations or surveillance work thanks to their durable material.