Size Chart

Choosing the right iwear can be a complex process. To ensure you find the best fitting iwear, we've collected information from our trusted brands and manufacturers. Use this valuable insight to make an informed decision!

WHAT ARE SUNGLASS MEASUREMENTS? 

Knowing how to read your eyeglasses size will help you find the best fit, especially when shopping for glasses online. Your glasses size is made up of 3 numbers that indicate measurements in millimeters, such as “45 20-135.” 

From left to right, these eyeglass measurements appear in the following order:

1. Lens width

2. Bridge width

3. Temple length

Sometimes a fourth number will be noted on the arms, which is your lens height. Keep in mind that all of these measurements are in millimeters.

  • 1. Lens Width

    This is the horizontal width of each lens at its widest point. It typically ranges from 40mm to 60mm.

  • 2. Bridge Width

    This is the distance between your two lenses. In short, the bridge width is the space where your frames fit against your nose. The size of this piece ranges from 14mm to 24mm.

  • 3. Temple Length

    This is the length of the temple from each screw to its temple tip, including the bend that sits on your ear. The temple is typically 120mm to 150mm long.

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WHAT IS FRAME SIZE?

The frame size refers to the horizontal width of the frame, measured between the centre of the left and the right hinge.

The three most common size options are:

  • Small:

    This option is slightly smaller than a universal size generally measuring 125-128 mm from hinge to hinge

  • Universal:

    This option is the most common and generic size made to accommodate most face shapes

  • Large:

    This option is slightly bigger than a universal size generally measuring 133-136 mm from hinge to hinge

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WHAT’S THE FIT?

Fitting is aesthethical information which determines the amount of face coverage for a given size. 

The three possible fittings are:

  • Narrow:

    A small lens front for those who prefer to cover a smaller portion of the face

  • Regular:

    A medium lens front designed for those who prefer to cover an average portion of the face

  • Wide | Oversized:

    A larger lens front designed for those who prefer to cover a greater portion of the face

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WHAT ARE THE BRIDGE AND NOSEPADS?

This functional information describes the different types of the bridge and the nosepads.

The three bridge and nosepads options are:

  • High Bridge Fit:

    Offers a more secure and comfortable fit for those with a high nose bridge and lower cheekbones. A good choice if the bridge of your nose is above the level of your pupils

  • Low Bridge Fit:

    Offers a more secure and comfortable fit for those with a low nose bridge and higher cheekbones. A good choice if eyewear tends to slide down your nose, sit too low, or press on your temples or cheeks

  • Adjustable Nosepads

    Nosepads that can be widened or narrowed to fit your unique nose shape, commonly found on iwear with metal frames

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Sometimes a bridge fit is not specified, in this case, the bridge fit is standard/universal, meaning they are designed to accommodate most face shapes

WHAT DO LENS CATEGORIES MEAN?

All sunglasses are tested and categorised based on performance suitability under AS/NZS 1067.1:2016.

Lens category refers to the Visible Light Transmission (VAT) that is, how much light the lens lets through. The higher the VLT% the lighter the lens, conversely the lower the VLT% the darker the tint will be, blocking more light coming through to the eye.

  • CAT 1:

    These slightly tinted lenses provide visual comfort because they improve contrast. Perfect in overcast weather, category 1 lenses transmit between 43 and 80% of the light

  • CAT 2:

    Offers the type of protection that is favoured in the off-season. Category 2 lenses offer good protection against glare. They are suitable for average sunshine and when conditions are changing with alternating sunshine, cloudy skies, and cloudy spells. Category 2 lenses allow 18 to 43% of the brightness to pass through

  • CAT 3:

    Widely used in summer, these lenses offer protection and excellent comfort when the light is bright. Perfect for summer day outings, they transmit only 8 to 18% of the brightness for your comfort. Excellent shields for your eyes in very sunny situations, category 3 lenses are also recommended for nautical activities and winter sports

  • CAT 4:

    It is very unlikely that you will have to wear category 4 glasses because they are more intended for high mountains. These are very opaque glasses offering extreme protection. Transmitting only 3 to 8% of the luminosity, they are particularly suitable for mountaineers and nautical activities.

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WHAT ARE POLARISED LENS?

Polarisation is a treatment applied to sunglass lenses designed to filter glare from horizontal surfaces such as glass, water, asphalt, and snow. This glare can be distracting or even dangerous because it can reduce clarity of vision. By blocking this glare, polarised lenses offer the best quality of vision during outdoor activities such as water sports and driving.

Polarised lenses contain a laminated filter to absorb light reflected off horizontal surfaces. This was inspired from a naturally occurring oil in the eyes of eagles which enabled them to see through light bouncing off a reflective surface like water. Eagles are able to see both above and below the surface that the light is reflecting off, giving them their ‘eagle eye’ quality of vision.

The lamination in the polarised lenses allow vertical light to pass through the lens, and blocks the horizontal light so the glare is reduced and vision clarity is improved.

Regardless of whether you spend a considerable amount of time by the water or near snow, polaroid sunglasses offer many practical benefits for everyday life. These benefits include:

  • reduces reflections and eliminates glare from surfaces including metal, asphalt, water and glass
  • improves visual clarity and contrast
  • reduces eye strain
  • allows for true perception of colours
  • improves comfort

BRAND-SPECIFICS

Every brand we stock at 365iwear is unique and uses different materials and technologies in its products. Please use our brand-specific list below to find out what makes each brand and its iwear special. 

More information and links

Lens Technology and Specs

Dragon


LUMALENS LENS | OPTIMISED COLOUR TECHNOLOGY

LUMALENS® is a colour optimised lens technology offering ultra-high definition optics across the entire spectrum of light conditions. Engineered to improve and optimize visibility in all environments, Dragon’s exclusive LUMALENS® technology delivers superior colour vividness, enhances contrast, improves depth perception, and reduces eye fatigue for better performance.


H2O FLOATABLE TECHNOLOGY

Our signature styles with design innovation taken to new depths. The H2O Floatable Collection is constructed with an injection molded thermoplastic with a lower-density H2O material that allows these sunglasses to float.

  • HYDROPHOBIC - Repels Water
  • OLEOPHOBIC - Repels Dirt, Dust & Oil
  • WATERPROOF - Hardware Protection
  • LIGHTWEIGHT - Low Density Thermoplastic
  • HARDCOATING - Scratch Resistant
  • POLAR PERFORMANCE - Advanced Polarisation

PLANT-BASED RESIN DESIGN

Plant-Based Resin is a natural bio-based material, a smarter and much cleaner alternative to standard petroleum-based products. The material we use is produced from castor bean oil, a highly resilient and renewable plant resource. It creates plastics that are strong, light, and durable while reducing our carbon footprint and ultimately, our impact on the planet.


For more information on Dragon lens and frame technology
https://dragonalliance.com.au/tech/lumalens/
https://dragonalliance.com.au/tech/plant-based-resin-frames/

Ray Ban

Ray Ban frames come in one or multiple sizes. See the range in the chart below:

Size | Hinge to hinge (mm)

  • XXS  |  <121
  • XS  |  121-124
  • S  |  125-128
  •  M  |  129-132
  •  L  |  133-136
  • XL  |  137-140
  • XXL  |  >140 


For more information on Ray Ban sizing
https://www.ray-ban.com/australia/c/size-guide

Serengeti


PHOTOCHROMIC TECHNOLOGY | MOLECULARLY INFUSED IN EVERY SERENGETI® LENS

As the pioneer of Photochromic technology, Serengeti® leads the industry in creating lenses that adapt to any light condition in any setting. Serengeti® Photochromic lenses are activated by the amount of UV radiation in the atmosphere and engineered to transition from light to dark, gradually.



SPECTRAL CONTROL® TECHNOLOGY | MOLECULARLY INFUSED IN EVERY SERENGETI® LENS

Specific and unique to Serengeti®, Spectral Control technology provides you with the ultimate High Definition vision of everything in sight. Blue light is necessary to regulate our biological clock. However, it is also a high-risk factor for age‑related macular degeneration (AMD).

Spectral Control® Technology filters up to 96% of blue light, allowing only the beneficial and regulating turquoise blue light to pass through, to reduce blue blur and visible noise. 



POLARIZATION TECHNOLOGY

Whether you’re in a high- or low-glare environment, you deserve lenses that give you the ultimate glare protection and with it, uncompromised clarity.

Our polarization technology eliminates 99,9% of disruptive glare from the four types of glare: distracting, discomforting, disabling and blinding. This ensures, therefore, no more reflection from: vehicle headlights, intense lights, shiny surface reflections and the everyday outdoors.


For more information on Serengeti lens technology
https://www.serengeti-eyewear.com/us/glass_references.html

Spy+


HAPPY LENS

The sun gives off rays that are both good and bad for your health and wellbeing. Unlike other color-enhancing lenses, which block the good as well as the bad, our revolutionary patented Happy™ lens tech lets in the good rays that help boost your mood and alertness and optimize color.

The result is a truly life-changing visual experience you can SEE and FEEL.


For more information on Spy lens technology
https://www.spyoptic.com/HappyLens.html
https://www.spyoptic.com/SnowTech.html

Oakley


PRIZM LENS 

Prizm™ leverages specific colors that give you otherwise hard-to-spot visual cues to keep you at your apex. Unlike traditional dyes, Prizm™ dyes manipulate the light that hits your lenses, enhancing color and contrast to reveal more details.

Decades of research into creating the most kick-ass lenses on the market led to Oakley® Prizm™ Lens technology. Understanding the workings of the brain and eye enabled us to fine-tune vision and optimize contrast across light and weather conditions so that “WTF!” is everyone’s natural reaction to seeing the world through Prizm™.


IRIDIUM LENS

Oakley Iridium® lens coating is engineered to reduce glare and improve contrast. An array of available tints allows the wearer to balance light transmission in any light condition.


PLUTONITE | RUNS THE DEFENSE

Plutonite® is one of many patented Oakley lens technologies and it’s what all our sunglasses’ lenses are made of. UV protection is a given, not a coating, UV protection of the Plutonite™ lens material is designed to filter out 100% of UVA & UVB light up to 400 nm. 


For more information on Oakley lens technology
https://www.oakley.com/en-au/lp/lens-technology
https://www.oakley.com/en-au/lp/prizm