Frequently Asked Questions
Are the Saint Laurent SL 277 sunglasses prescription-ready?
What is the frame size of the Saint Laurent SL 277?
Do Saint Laurent SL 277 sunglasses have UV protection?
What material are the Saint Laurent SL 277 frames made from?
What comes included with Saint Laurent SL 277 sunglasses?
How does the Saint Laurent SL 277 cat-eye shape compare to other cat-eye sunglasses?
Compare With Similar Frames
How the Saint Laurent New Wave SL 277 Sunglasses stacks up against the closest alternatives we carry.
- Slightly larger 54mm lens width for those who prefer more coverage
- Features the iconic Cassandra logo at temples for more prominent branding
- Available in additional color options including ivory and havana
Read the full comparison
Saint Laurent SL 277 vs SL M115: Which Cat-Eye Sunglasses Are Right for You?
Both the Saint Laurent SL 277 and SL M115 are premium cat-eye sunglasses made from recycled acetate, but they serve different style preferences. Here's how to choose between them.
Size and Fit Differences
The SL 277 features a 52mm lens width with a distinctly narrow cat-eye shape—more streamlined and modern. The SL M115 offers a 54mm lens width with a fuller, more traditional cat-eye silhouette. If you have a smaller face or prefer understated proportions, the SL 277's narrow design is more versatile. For those who want maximum coverage and a bolder vintage-inspired look, the SL M115 delivers more presence.
Branding and Details
The SL 277 features subtle logo engraving in light grey at the temples—refined and discreet. The SL M115 showcases the iconic Cassandra logo plaques at the temples, making the brand identity more prominent. If you prefer quiet luxury, the SL 277 is the better choice. If you want recognizable Saint Laurent branding, the SL M115 stands out.
Color and Lens Options
The SL 277 is available in bold red with grey lenses or classic black with black lenses—both solid tints. The SL M115 offers black, havana, and ivory frames with gradient lens options. If you want a statement color like red, the SL 277 is your only option. For gradient lenses or tortoiseshell tones, the SL M115 provides more variety.
Our Recommendation
Choose the SL 277 if you want a modern, narrow cat-eye with bold color options and a lower price point ($297.79 vs $302.34). It's ideal for those who prefer contemporary proportions and subtle branding. Choose the SL M115 if you prefer a larger, more traditional cat-eye with prominent Cassandra logo details and gradient lens options. Both are prescription-ready, offer 100% UV protection, and represent Saint Laurent's commitment to sustainable luxury with recycled acetate frames.
At a Glance
Saint Laurent SL M115 Sunglasses
Pros:
- Slightly larger 54mm lens width for those who prefer more coverage
- Features the iconic Cassandra logo at temples for more prominent branding
- Available in additional color options including ivory and havana
- Gradient lens options available for a softer look
Cons:
- Larger size may overwhelm smaller faces
- More traditional cat-eye shape is less modern than the SL 277's narrow design
- Slightly higher price point at $302.34



