Quick answer - start with width and shape for Zac Posen eyewear
Pick a shape that complements your face, then match your current frame’s lens width and bridge. Most shoppers land fastest on a flattering fit by staying within a few millimeters of a frame they already love.
Fit and size tips for Zac Posen eyewear
The size stamp reads like 50-18-140 - lens width, bridge, temple. For narrow or petite fits, try 49-50 mm lenses and a 16-18 mm bridge; medium faces often prefer 51-53 mm with a 17-19 mm bridge. If temples press, adjust the curve behind the ear or choose spring hinge styles for gentler hold. Keep total width close to your current favorite to avoid sliding or pinch.
Eyeglasses arrive with demo lenses; your optician can fit prescription lenses. Several Zac Posen sunglasses list 100% UVA and UVB protection, while others use gradient tints for driving comfort. Want glare control discovery? See our curated polarized sunglasses.
Face shape guidance
Round faces get instant lift from cat eye and upswept browlines. Square jaws soften with oval or rounded corners. Heart shapes balance with slightly wider lower rims or gentle squares. For a deeper walkthrough, try our concise face shape guide and compare two adjacent sizes.
Materials and care
Most frames use plant based acetate for depth of color and smooth feel, with metal accents for structure. Store in the included case or pouch to keep finishes pristine.
| Model | Shape/Material | Lens/UV | Fit notes |
| Orson eyeglasses | Square - acetate | Demo lenses | 49-18-145 - balanced everyday width |
| Dandridge eyeglasses | Cat eye - metal & plastic | Demo lenses | 51-19-135 - spring hinges add comfort |
| Viv sunglasses | Cat eye - plastic | 100% UVA & UVB | 56-19-140 - generous coverage |
| Lavette sunglasses | Browline - metal & plastic | Gradient tint | 57-15-140 - bold, lifted profile |
Selection rotates periodically - availability can change without notice. A branded case is typically included and may vary by style. For returns, review our return and refund policy before ordering.
FAQ
Do Zac Posen eyeglasses come ready for prescription lenses?
Yes - frames ship with clear demo lenses so you can preview the look and sizing. Bring the frame to your optician to add your prescription. If you are between sizes, order the closer lens width and use small adjustments at the bridge and temples for fine tuning.
Are Zac Posen sunglasses UV protective?
Many Zac Posen sunglasses list 100% UVA and UVB protection, and some styles feature gradient tints for driving comfort. Check the Lens or Specifications section on each product page. If you spend hours in bright glare, consider polarized options for added visual comfort.
Which Zac Posen cat eye works for a round face?
For round faces, look for an upswept cat eye with slightly angular corners to add definition. Keep lens width near your current pair, then choose a bridge in the 17-19 mm range for stability. Trying two adjacent sizes helps you compare lift and coverage in natural light.
How do I read sizes like 50-18-140 on Zac Posen frames?
Those numbers are lens width - bridge - temple length in millimeters. As a quick rule, keep lens width within 1-2 mm of a frame that already fits, confirm the bridge feels secure without pinch, and aim for temples long enough to reach behind the ear without pressure.
Do Zac Posen eyeglasses use spring hinges?
Several optical styles include spring hinges for a gentler, more flexible hold. Spring hinges can reduce temple pressure for long wear. If you prefer a firmer feel, standard hinges keep the fit crisp. Check each listing’s specifications for hinge type before you choose.
Are these Zac Posen frames authentic?
Yes - ModaFrames is an authorized retailer of Zac Posen eyewear. You receive genuine frames curated from designer collections, plus the brand’s original case or pouch when noted. If a style includes a branded case, the case type or color may vary by batch.
Will Zac Posen low bridge glasses stay put on me?
Low bridge fits benefit from keyhole bridges, adjustable nose pads, or slightly narrower bridges for stability. Start around 16-18 mm bridge width and test how the frame rests on the nose without sliding. Minor pad and temple tweaks from an optician can lock in comfort.
Do Zac Posen sunglasses reduce road glare?
Standard tints reduce brightness, while polarized lenses specifically cut horizontal glare from pavement and water. If you drive frequently, polarized options can feel calmer and clearer. Confirm lens details on the product page and compare coverage heights for sun protection.
What if temples feel tight behind my ears?
That usually means the end curve needs a small adjustment. An optician can slightly open the bend or rebalance the temple angle for even pressure. You can also try a size with 1-2 mm more lens width or a spring hinge design for a softer clamp on long days.
Where can I learn more about frame materials and UV?
For a quick primer on acetate, titanium, lens ABBE values, and UV coatings, read our guide to eyeglass materials and protection here: eyeglasses facts. It explains how lens and frame choices affect clarity, comfort, and durability.