Frequently Asked Questions
Are the Saint Laurent SL M94/F sunglasses prescription-ready?
What is the difference between the SL M94 and SL M94/F?
Do these sunglasses provide UV protection?
What size are the Saint Laurent SL M94/F sunglasses?
Are these sunglasses made from recycled materials?
How do Saint Laurent cat-eye sunglasses fit compared to other brands?
Compare With Similar Frames
How the Saint Laurent SL M94/F Sunglasses stacks up against the closest alternatives we carry.
- Polarized lens options available for glare reduction
- Slightly wider 20mm bridge may fit some face shapes better
- Multiple color options including Havana/Green polarized
- Lower price at $288.91
- Same iconic cat-eye shape and YSL hinge detail
- Can be fitted with photochromic lenses that darken in sunlight
- Lower starting price ($162.09 vs $349.41)
- Prada's signature triangle logo
- Multiple style variations available
Read the full comparison
Saint Laurent SL M94/F vs SL M94 vs Optical Alternative
The SL M94/F sits in the middle of Saint Laurent's M94 family, offering the brand's signature bold cat-eye shape with non-polarized UV-protective lenses. If you're deciding between variants or considering alternatives, here's what matters:
SL M94/F vs Standard SL M94
The standard Saint Laurent Monogram SL M94 ($354.75-$365.38) offers polarized lens options, which cut glare from water, roads, and windshields—ideal for driving or beach days. The trade-off? Polarized lenses can make it harder to read phone screens and digital displays, and the price is slightly higher. The M94 also has a 20mm bridge versus the M94/F's 19mm bridge, which may fit wider nose bridges more comfortably.
The M94/F keeps the same bold acetate construction and YSL hinge detail but uses non-polarized nylon lenses with full UV protection. This makes them more versatile for everyday wear—no issues with screens, and a slightly lower price. If you don't need glare reduction and want the most wearable version of this frame, the M94/F is the smarter choice.
Sunglasses vs Optical: SL M94 OPT Eyeglasses
Love the cat-eye shape but need prescription glasses for daily wear? The SL M94 OPT Eyeglasses ($288.91) deliver the same architectural frame and YSL logo hinge in an optical version. You can add photochromic (transition) lenses that darken outdoors, giving you sun protection when needed. The optical version costs less upfront, but you'll need to budget for lens upgrades if you want outdoor functionality.
Luxury Alternative: Prada 12XS
If you're shopping across Italian luxury brands, the Prada 12XS ($162.09-$321.00) offers a more classic cat-eye silhouette at a lower entry price. Prada's aesthetic is more refined and understated compared to Saint Laurent's bold, rock-inspired edge. The 12XS has a thinner profile and the signature Prada triangle logo, but it doesn't command the same presence as the M94/F's thick acetate and prominent YSL hinge.
Bottom line: Choose the M94/F if you want Saint Laurent's boldest cat-eye with everyday versatility and UV protection. Upgrade to the standard M94 if you need polarization for driving or water sports. Consider the optical version if you need prescription glasses and can add sun lenses later. The Prada 12XS is the value play if you want Italian luxury cat-eye style without the Saint Laurent price tag.
At a Glance
Saint Laurent Monogram SL M94 Sunglasses
Pros:
- Polarized lens options available for glare reduction
- Slightly wider 20mm bridge may fit some face shapes better
- Multiple color options including Havana/Green polarized
Cons:
- Higher price point ($354.75-$365.38 vs $349.41-$354.75)
- Polarized lenses not ideal for viewing digital screens
- Fewer color options in the M94/F
Saint Laurent SL M94 OPT Eyeglasses
Pros:
- Lower price at $288.91
- Same iconic cat-eye shape and YSL hinge detail
- Can be fitted with photochromic lenses that darken in sunlight
Cons:
- No sun protection without adding tinted lenses
- Designed for indoor/optical use
- May require lens upgrades for outdoor functionality
Prada 12XS Sunglasses
Pros:
- Lower starting price ($162.09 vs $349.41)
- Prada's signature triangle logo
- Multiple style variations available
Cons:
- Less bold, more classic cat-eye shape
- Doesn't have the same architectural presence as the M94/F
- Different brand aesthetic—more refined, less rock-and-roll



