Free Shipping & Easy Returns! Explore Saint Laurent SL M33/F - Alternate Fit Eyeglasses now. The Saint Laurent SL M33/F - Alternate Fit eyeglasses offer a modern, chic update to the classic horn-frame look. These women’s glasses feature rounded edges and subtle angles that add interest to their basic silhouette. The plastic frames make these glasses lightweight and comfortable, while also making them durable enough for your everyday wear. About Saint Laurent Eyewear The Saint Laurent eyewear collection places minimalist and convention-dodging glasses designs side by side. This acclaimed luxury fashion house infuses each piece with the glamour of Paris, and Saint Laurent sunglasses and eyeglasses for men and women are no exception.