Spy Discord Black Flag Sunglasses. As big and bold as the era that inspired it, the Discord proves that a little dissension goes a long way in this large-scale, ’80s-inspired piece. From dark tinted sunglasses to colored spectra, Discord is available with Spy's revolutionary Happy™ lens tech and polarization. It's also constructed from lightweight yet durable Grilamid® and features robust 5-barrel hinges. SPY+’s revolutionary therapeutic Happy™ lens tech is scientifically tuned to boost mood and alertness while enhancing color and contrast, providing a truly life-changing visual experience. ARC® (Accurate Radius Curvature) polycarbonate lenses are tapered to follow the natural curvature of the eye, providing crystal-clear distortion-free vision while reducing eyestrain. Constructed from Grilamid®, a lightweight frame material ideal for everyday wear due to its strength and flexibility. Robust 5-barrel hinges for added durability. 100% UV protection reduces eye fatigue and long-term sun damage. Frame measures 57-17-145. Imported.