CK20541S
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100% Satisfaction Guarantee
100% Satisfaction Guarantee
We’re committed to ensuring you’re completely satisfied with your purchase. If for any reason you’re not delighted with your glasses, simply let us know, and we’ll make it right. Our 100% Satisfaction Guarantee covers exchanges, adjustments, and even a full refund if needed. Click here to learn more about how we support your satisfaction.
The right size frames
With thousands of frames to choose from, how do you choose a pair of glasses that will fit correctly? On this page, you'll learn two methods for choosing a great-fitting frame, without having to try them on first. These tips are extremely handy if you are considering purchasing your next pair of glasses on the internet. If you do decide to buy online, it is advisable to choose a supplier that offers an exchange or return service, just in case!
Calculate Your Frame Width
Determining your frame width is crucial for selecting glasses that fit well and look great. It's a simple step that guides you to the ideal eyewear size for optimal comfort and style. Follow these steps for a perfect fit:
Measure the width of one lens to find your eye size. Multiply your eye size by 2.
Measure the width of the bridge (the part over your nose).
Add 11mm to account for the frame's arm width from the front.
Example: If your eye size is 50mm and your bridge width is 20mm:
Double Eye Size: 50mm x 2 = 100mm
Add Bridge Width: 100mm + 20mm = 120mm
Add for Arms: 120mm + 11mm = 131mm
Your ideal frame width is 131mm(+ or - 4mm for flexibility).
Our Helpful Sizing Tool
| Size | Measurement (mm) |
|---|---|
| Small | 115-135 |
| Medium | 130-140 |
| Large | 135-145 |
| Extra Large | 140-155 |
Our sizing tool simplifies the process of finding the perfect glasses by categorising them into four sections: Small, Medium, Large, and Extra Large. With just a few clicks, you can find the size that will provide the best fit and comfort. Our tool helps us deliver glasses that fit well and look great, and it's available under the "size" dropdown on our catalogue pages. If you're looking for something more specific, you can adjust the sizing sliders under the "Advanced sizing" option. Find your perfect pair with ease using our sizing tool.
Finding your frame size
When selecting a new pair of glasses, it's important to know your frame size to ensure a comfortable and proper fit. This diagram illustrates where to find the size measurements on your current pair of glasses. Typically, these measurements are located on the inside of the arm and are listed in millimeters. The first number represents the lens width (Eye size), the horizontal diameter of one lens6. The second number is the bridge width, the distance between the two lenses. Lastly, the third number indicates the length of the arm. To find the best fit, compare these measurements to the size specifications of the new glasses you are considering.
The number on the left-hand side of the square box is the "Eye Size" and is sometimes referred to as the "A" measurement. This is the width of the lens at its widest point measured in millimetres (see A in the diagram below).
The number on the right-hand side of the square box is the "Bridge Width" and is sometimes referred to as the "DBL" (distance between lenses). This is the distance between the two lenses measured in millimetres.
You may also find a third, three-digit number. This is the "Arm Length". The arm length is measured in millimetres from the attachment screw to the tip of the arm. The measurement is made before the bend is put into the arm.
Lens Depth
You may have noticed that thus far, we have not mentioned the Lens Depth. This measurement will largely depend on the style of frame you decide upon and in many cases, is not required to identify a good-fitting frame. However, if you are choosing glasses for bifocals or varifocals, be mindful that the shallower the frame is, the less area there will be available for the reading element of your lens.
When purchasing Varifocals we recommend a Lens Depth of at least 27 millimetres. For this reason, at Spex4Less, Varifocal lenses will not be available to purchase on frames with a lens depth of fewer than 27 millimetres.
The right size frames
With thousands of frames to choose from, how do you choose a pair of glasses that will fit correctly? On this page, you'll learn two methods for choosing a great-fitting frame, without having to try them on first. These tips are extremely handy if you are considering purchasing your next pair of glasses on the internet. If you do decide to buy online, it is advisable to choose a supplier that offers an exchange or return service, just in case!
Calculate Your Frame Width
Determining your frame width is crucial for selecting glasses that fit well and look great. It's a simple step that guides you to the ideal eyewear size for optimal comfort and style. Follow these steps for a perfect fit:
Measure the width of one lens to find your eye size. Multiply your eye size by 2.
Measure the width of the bridge (the part over your nose).
Add 11mm to account for the frame's arm width from the front.
Example: If your eye size is 50mm and your bridge width is 20mm:
Double Eye Size: 50mm x 2 = 100mm
Add Bridge Width: 100mm + 20mm = 120mm
Add for Arms: 120mm + 11mm = 131mm
Your ideal frame width is 131mm(+ or - 4mm for flexibility).
Our Helpful Sizing Tool
| Size | Measurement (mm) |
|---|---|
| Small | 115-135 |
| Medium | 130-140 |
| Large | 135-145 |
| Extra Large | 140-155 |
Our sizing tool simplifies the process of finding the perfect glasses by categorising them into four sections: Small, Medium, Large, and Extra Large. With just a few clicks, you can find the size that will provide the best fit and comfort. Our tool helps us deliver glasses that fit well and look great, and it's available under the "size" dropdown on our catalogue pages. If you're looking for something more specific, you can adjust the sizing sliders under the "Advanced sizing" option. Find your perfect pair with ease using our sizing tool.
Finding your frame size
When selecting a new pair of glasses, it's important to know your frame size to ensure a comfortable and proper fit. This diagram illustrates where to find the size measurements on your current pair of glasses. Typically, these measurements are located on the inside of the arm and are listed in millimeters. The first number represents the lens width (Eye size), the horizontal diameter of one lens6. The second number is the bridge width, the distance between the two lenses. Lastly, the third number indicates the length of the arm. To find the best fit, compare these measurements to the size specifications of the new glasses you are considering.
The number on the left-hand side of the square box is the "Eye Size" and is sometimes referred to as the "A" measurement. This is the width of the lens at its widest point measured in millimetres (see A in the diagram below).
The number on the right-hand side of the square box is the "Bridge Width" and is sometimes referred to as the "DBL" (distance between lenses). This is the distance between the two lenses measured in millimetres.
You may also find a third, three-digit number. This is the "Arm Length". The arm length is measured in millimetres from the attachment screw to the tip of the arm. The measurement is made before the bend is put into the arm.
Lens Depth
You may have noticed that thus far, we have not mentioned the Lens Depth. This measurement will largely depend on the style of frame you decide upon and in many cases, is not required to identify a good-fitting frame. However, if you are choosing glasses for bifocals or varifocals, be mindful that the shallower the frame is, the less area there will be available for the reading element of your lens.
When purchasing Varifocals we recommend a Lens Depth of at least 27 millimetres. For this reason, at Spex4Less, Varifocal lenses will not be available to purchase on frames with a lens depth of fewer than 27 millimetres.
Frame Details:
-
Size:
XFind your frame size
Use our glasses size calculator to find your ideal size. Enter your frame measurements below (usually found inside the temple arm or nose bridge).
Lens must be between 40 and 70
Bridge must be between 10 and 20
Your Recommended Size is
- Material: Plastic
- Delivery: (Sourced from Italy)
- Price:
-
- Gender: Womens
-
Multifocal:
Available
Multifocal
This frame is compatible with multifocal lenses, including varifocal, bifocal, and occupational lenses. Multifocal lenses are ideal if you need vision correction at multiple distances, such as for reading, computer work, and seeing far away—all in one pair of glasses.
Choosing multifocal lenses means you can enjoy clear, seamless vision without the need to switch between different pairs of glasses.
Need help deciding? Our opticians can guide you on the best lens option for your lifestyle.
- Frame Type: Full Rimmed
- RRP:
- Nose Pad: Moulded/Plastic
- Frame Shape: Square
- Brand: Calvin Klein
- Colour:
- SKU:
Introducing the CK 20541S Calvin Klein Sunglasses, an embodiment of refined elegance and cutting-edge style. Crafted from high-quality plastic, these square frames offer a contemporary yet timeless aesthetic, making them the perfect accessory for any occasion. The robust material ensures durability without compromising on comfort, allowing for prolonged wear with ease. These Calvin Klein sunglasses feature a sophisticated design, with sleek lines and subtle branding on the arms, reflecting the brand's commitment to understated luxury. The square shape is flattering for various face shapes, offering both a modern appeal and classic charm. Ideal for both leisurely strolls and formal events, these frames are versatile enough to enhance any outfit. Embrace the perfect blend of comfort and style with Calvin Klein's signature craftsmanship. Wearing these sunglasses will not only shield your eyes but also make a bold fashion statement, giving you an air of confidence and sophistication wherever you go. Elevate your eyewear collection with the CK 20541S Calvin Klein Sunglasses and experience the allure of true luxury.
Delivery & Returns
| Non-Prescription Lenses | Standard Lenses | Specialist Lenses |
|---|---|---|
If you're not satisfied with your purchase from Spex4Less, you can request a return or exchange within 7 days for prescription glasses or 14 days for non-prescription items. Items must be returned in their original condition. For more details, visit the Exchanges & Returns page.
Explore Our Range of Lens Options
Bespoke Prescription Lenses
Our lenses are crafted to your exact prescription, ensuring perfect vision, and are backed by our 100% satisfaction guarantee.
A Range of Premium Lenses
Explore our selection of premium lenses, including bifocal, varifocal, and cmsb99-transition options, designed to meet your unique vision needs.
Custom Tints and Lens Coatings
Enhance your lenses with a variety of tints and coatings, from anti-glare to blue light protection.
