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The Silhouette SPX Illusion Fullrim 2940 Eyeglasses bring Austrian precision engineering to an everyday oval frame. Made from Silhouette's patented SPX®+ polymer composite, these full-rim prescription eyeglasses deliver the kind of all-day comfort that makes you forget you're wearing glasses at all.
SPX®+ Material: Lightweight Without Compromise
Silhouette developed SPX®+ as a high-performance alternative to standard acetate. The result is a frame that's remarkably light, hypoallergenic, and flexible enough to handle daily wear without losing its shape. The material is also skin-friendly, making these frames a smart choice if you have sensitivities to metal or traditional plastics. Each frame is hand-dipped in color to ensure consistency across the entire surface, and the integrated snap hinge adds durability while keeping the design clean and modern.
The 2940 features integrated, adjustable nosepads and flexible temples that can be customized to fit your face. Available in two sizes—49mm and 51mm lens width—this model works well for those who prefer smaller to medium oval frames. The oval shape is flattering on rectangular and square face shapes, balancing angular features with soft curves.
Prescription-Ready for Any Lens Type
These frames are fully compatible with single vision, progressive, and bifocal lenses. The full-rim construction provides stability for higher prescriptions and helps conceal lens thickness better than rimless styles. The 42mm lens height on the 51mm size offers enough vertical space for progressive lens corridors, making this a practical option if you need multifocal correction.
The SPX Illusion Fullrim 2940 comes in a range of colors, from classic matte black and havana tones to vibrant blues, reds, and gradient finishes. Matte black temple ends with shiny tips add a refined detail. Designed and manufactured in Austria since 1964, Silhouette frames are built to last—many owners report wearing the same pair for years, simply updating the lenses as prescriptions change.
Product Details
Product DetailsModel
SPX IllusionShape
Gender
Material
Bridge Type
Rim Type
Age Group
Color Details
Color DetailsColor Code
9030Color Description
black
Color Code
8510Color Description
creme
Frame Color
RedColor Code
3010Color Description
red
Color Code
9310Color Description
black
Frame Color
RedColor Code
3010Color Description
red
Color Code
9030Color Description
black
Frame Color
BlueColor Code
4510Color Description
blue
Color Code
8510Color Description
creme
Color Code
9310Color Description
black
Frame Color
BlueColor Code
4510Color Description
blue
Frame Color
PurpleColor Code
4110Color Description
violet
Frame Color
PurpleColor Code
4110Color Description
violet
Color Code
6130Color Description
brown
Color Code
6130Color Description
brown
Color Code
M130Color Description
brown
Color Code
M130Color Description
brown
Frame Color
BlueColor Code
4610Color Description
blue
Frame Color
BlueColor Code
4610Color Description
blue
Frame Color
BlueColor Code
4560Color Description
blue
Frame Color
BlueColor Code
4560Color Description
blue
Size Details
Size DetailsBridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
17.00Temple Length
135.00Size
4917
Bridge Width
18.00Temple Length
145.00Size
5118
Bridge Width
17.00Temple Length
135.00Size
4917
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Frequently Asked Questions
Are Silhouette SPX Illusion 2940 frames lightweight?
Yes, these frames are exceptionally lightweight. Made from Silhouette's patented SPX®+ polymer composite material, they're designed to be comfortable for all-day wear. Some SPX Illusion models weigh as little as 10 grams even with lenses installed, making them ideal for people who find traditional frames heavy or uncomfortable.
Can I use progressive lenses with the Silhouette 2940?
Absolutely. The SPX Illusion Fullrim 2940 is fully compatible with progressive, bifocal, and single vision lenses. The 42mm lens height (on the 51mm size) provides adequate vertical space for progressive lens corridors, and the full-rim construction offers the stability needed for multifocal prescriptions.
What is SPX®+ material and is it durable?
SPX®+ is Silhouette's patented polymer composite, developed as a lightweight, hypoallergenic alternative to standard acetate. It's extremely flexible yet highly durable and resistant to warping, ensuring a customizable fit. The material is comfortable, skin-tolerant, and designed to withstand daily wear without breaking, though like all eyewear it benefits from proper care.
What face shapes work best with the oval 2940 frame?
The oval shape of the Silhouette 2940 is particularly flattering on rectangular and square face shapes, as the soft curves help balance angular features. The frame is available in 49mm and 51mm lens widths, making it suitable for small to medium faces. The unisex design works equally well for men and women.
Are these frames hypoallergenic?
Yes. The SPX®+ material used in the Silhouette SPX Illusion 2940 is hypoallergenic and designed for skin tolerability. This makes them an excellent choice if you have sensitivities to metal frames or traditional plastic materials. The integrated nosepads are also adjustable for a personalized, pressure-free fit.
How do I know which size to choose—49mm or 51mm?
The size refers to the lens width. If you have a smaller face or prefer a more compact fit, the 49mm is ideal. The 51mm works for medium faces and provides a bit more coverage. You can check your current glasses—the measurements are usually printed on the inside of the temple arm in the format: lens width-bridge width-temple length (e.g., 51-18-145).
Compare With Similar Frames
How the Silhouette SPX Illusion Fullrim 2940 Eyeglasses stacks up against the closest alternatives we carry.
- Same SPX®+ lightweight material
- Different shape option for variety
- Similar price point and quality
- Cat-eye shape for a more fashion-forward look
- Same lightweight SPX®+ construction
- Compatible with progressive lenses
- Same premium SPX®+ material
- Alternative shape for different style preferences
- Equally lightweight and comfortable
Read the full comparison
Silhouette SPX Illusion Fullrim 2940 vs. Similar Models
If you're considering the Silhouette SPX Illusion Fullrim 2940, you might also be weighing other models in the SPX Illusion Fullrim collection. All share the same Austrian-made quality and patented SPX®+ material, but differ in frame shape and sizing. Here's how they compare:
SPX Illusion 2940 vs. 1603
Both the 2940 and the 1603 use the same lightweight SPX®+ polymer and offer the same hypoallergenic, flexible construction. The key difference is frame shape: the 2940 features a classic oval design that flatters rectangular and square faces, while the 1603 offers a different silhouette. If you prefer the universally flattering oval shape and need a frame in 49mm or 51mm, the 2940 is your best bet. Both are compatible with progressive lenses and come in a wide range of hand-dipped colors.
SPX Illusion 2940 vs. 1604
The 1604 brings a cat-eye shape to the SPX Illusion family, making it a more fashion-forward alternative to the 2940's oval design. If you want a frame that makes more of a statement and suits a feminine aesthetic, the 1604 is worth considering. However, the 2940's oval shape is more versatile and works well for both men and women, making it the safer choice if you want a frame that pairs with any outfit or occasion.
SPX Illusion 2940 vs. 1605
The 1605 is another SPX Illusion Fullrim option with the same material benefits and Austrian craftsmanship. The difference again comes down to shape and sizing. The 2940's oval design is ideal if you have angular features you want to soften, while the 1605 may offer a different shape that suits other face types. All three models are prescription-ready and built to last for years.
Why Choose the 2940?
The Silhouette SPX Illusion Fullrim 2940 stands out for its universally flattering oval shape, two size options (49mm and 51mm), and unisex appeal. It's the go-to choice if you want a lightweight, comfortable frame that works for any occasion and suits a wide range of face shapes. The full-rim construction also makes it ideal for higher prescriptions, as it conceals lens thickness better than rimless styles.
At a Glance
Silhouette SPX Illusion Fullrim 1603 Eyeglasses
Pros:
- Same SPX®+ lightweight material
- Different shape option for variety
- Similar price point and quality
Cons:
- Different frame shape may not suit all face types
- Slightly different sizing options
Silhouette SPX Illusion Fullrim 1604 Eyeglasses
Pros:
- Cat-eye shape for a more fashion-forward look
- Same lightweight SPX®+ construction
- Compatible with progressive lenses
Cons:
- Cat-eye shape is less versatile than oval
- May not suit all face shapes as well
Silhouette SPX Illusion Fullrim 1605 Eyeglasses
Pros:
- Same premium SPX®+ material
- Alternative shape for different style preferences
- Equally lightweight and comfortable
Cons:
- Different frame shape and sizing
- May have different color availability