Saint Laurent Sunglasses SL 331 001 47
The Saint Laurent SL 331 reinterprets the classic square silhouette with an essential and contemporary design. Clean lines, a metal front, and compact proportions make this model a perfect balance between vintage inspiration and modern minimalism, in true Saint Laurent style.
The frame is made of semi-matte black metal, a refined finish that adds depth to the design while maintaining a discreet and sophisticated aesthetic. The lightweight structure ensures high comfort throughout the day, while the Made in Italy production guarantees construction quality and impeccable finishes, distinctive features of Saint Laurent eyewear.
The black nylon lenses offer complete protection from UVA and UVB rays (filter category 3), ensuring high visual quality and effective reduction of light intensity. The combination of the semi-matte black frame and black lenses creates an elegant, versatile, and timeless all-black look.
The SL 331 001 are designed for men and women who desire luxury sunglasses with a strong yet refined character. A Saint Laurent model capable of combining iconic design, premium materials, and daily comfort, ideal for completing any look with an essential and contemporary style.
- Reference: 30008255001
- Frame: Matte black metal
- Lenses: Black
- Fitting: Standard
- Size: 47-21-145
- Made in: Italy
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Looks best on these face shapes: Oval, Round, Square, Heart
Size Guide
Eyeglass size guide
Are you about to select your new glasses, and you're wondering: what should be the perfect size? This is an important consideration, especially if you're thinking of buying them online without trying them on first. Here you'll find the
answer, whether you already have a frame but don't know the size, or whether you're starting from scratch.
How to read your eyeglass size
If you already have a pair of sunglasses or eyeglasses and want to know their size, check the inside of the temple.

The three numbers you see correspond to the lens width , the bridge width and the temple length .

The width of the lens is also called the caliber and corresponds to the size of your glasses .
The bridge measurement refers to the part of the frame that rests on the nose and connects the lenses.
The temple is measured in its entirety, from the end that rests behind the ear to the junction with the front of the glasses.
Please note: These three measurements are expressed in millimeters .
On SunglassUp.it, the size of the glasses is shown on the product sheet, above the ADD TO SHOPPING BAG button.
What do you need?
A mirror
A credit card or similar sized card
How to find your size

Place the long side of the paper in the center of your nose, align the short side with your eye, and look at yourself in the mirror.



How to know if your glasses are the right size
When you wear the perfect glasses, you can feel it: they're comfortable and enhance your image to the fullest. However, if you're not entirely sure about the size, here are some helpful tips.
If your glasses slip, there's something wrong. They're probably too big. With the correct size, the frame fits snugly on your nose, without being too tight. The temples should be neither too tight nor too loose at the temples.
Put on your glasses and look at yourself in the mirror: your pupils should be aligned horizontally in the center of the lenses.
If the glasses move easily when you smile when pressed against your cheeks, you may need a different size that best suits your face.
Speaking of eyebrows: personal style matters here. While many recommend keeping the frames below the brow bone, we've noticed that some people prefer glasses that cover them, especially oversized models with distinctive profiles or sunglasses. The decision is yours!
Do you have any doubts left?
Chat with our Customer Service or email servizio.clienti@sunglassup.it . We'll be happy to help you choose the perfect size.
Your order will arrive in an elegant SunglassUp packaging. Add a note at checkout to receive it and make your gift even more exclusive.