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Free standard shipping and returns. 30 day risk free trial.

Free Shipping & Returns + 30 Days Risk Free

Get 10% off your first order with code WINTER10

Measure your pupillary distance (PD)

Excited for your Pair? We are too! Just one more step 🤓

PD is the distance between your pupils and is used to help center your prescription correctly in your Pair. Please review the steps below to use our PD measurement tool.

1. If you’re wearing glasses, please take them off for your photo

It also helps to be in a well-lit area with an empty background.

2. Look directly into the camera

Your face should be centered in the screen.

3. Place any card with a magnetic strip under your nose and snap your photo.

Make sure the card is touching your face with the strip facing outward and right side up.

PD Received!

Your PD has been received successfully, your PD is: . You may now close this page.


Your PD is: , but there was an issue recording your PD to our database. Please refresh this page and try again, or contact us and send your information directly at

Understanding Fit

Swipe for all 5 measurements Shop Frames
Like other eyewear brands, PAIR sizes frames according to lens width, bridge width, and temple arm length. We also measure lens height, and total frame width - swipe above for all five frame measurements.
If you have old frames that fit you well, you can compare our sizes to those. You can find those three measurements on the inner arm of your current frame. Chat with one of our stylists for help with sizing!
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All Frames

Scroll down to see sizing information for all 5 of our frames, along with pictures of real kids in their PAIR to help you find the frame that fits best!

Measurements: 46-17-135

Lens Height: 25.9mm

Frame Width: 124.5mm

Typically fits ages 5-9

Customize the Cedro

Measurements: 45-18-135

Lens Height: 35mm

Frame Width: 125mm

Typically fits ages 5-9

Customize the Serra

Measurements: 49-17-140

Lens Height: 32mm

Frame Width: 130mm

Typically fits ages 8-12

Customize the Otero

Measurements: 47-18-135

Lens Height: 36mm

Frame Width: 128mm

Typically fits ages 9-adult

Customize the Twain

Measurements: 51-17-140

Lens Height: 33.7mm

Frame Width: 133mm

Typically fits ages 10-Adult

Customize the Larkin

100% Risk Free

100% Risk Free

Your frames comes with a 30 day trial period and free shipping + returns.

If you or your little one doesn’t absolutly love their PAIR we will exchange or return your frame for FREE. Whatever you need, no questions asked. Just reach out to our customer success team. We’re here for you!
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