Smith Projekt Sunglasses Polarized Sm Pjppbrhn - Smith Sunglasses Projekt - Medium Fit. Durable acetate frames feature custom hinge logo for easy adjustability and a secure, comfortable fit. 8 base CR39 lenses for fashion-forward colorations and precise optics. Tapered lens Technology to optimize your viewing pleasure. ANSI Z80.3 certified. 100% UV Protection. LIFETIME Warranty.