Finding the Perfect Fit for Your Little Peeps

Sure, our sunnies look amazing, but properly fitting sunglasses are actually essential for serious sun protection. Here is how to find your perfect match.

Find their size Full spec table

Not Sure Which Size to Choose?

It comes down to one number. Measure it once and you can size every pair on the site in seconds.

Measure your child's face width from temple to temple, the widest part of their head just above the ears.

A soft tape measure is easiest. A wriggly toddler makes this approximate, and that is fine.

Find Their Pair by the Numbers

Pop their measurement in and we will show you what fits.

Most 0 to 2 year olds land near 100mm to 112mm. Most 3 to 7 year olds land near 112mm to 125mm.

No tape measure handy?

A bank card is 85.6mm across. Hold one flat against their face just above the ears. Most toddlers are about a card plus two finger widths, most school aged kids a card plus three. Rough, but it gets you into the right bracket.

Frames that fit

Fit is judged on frame width against the measurement you entered. The same width or up to 5mm wider is the sweet spot, and up to 10mm wider still works on most faces.

Sunglasses 101: The Measurements That Matter

Five numbers describe any pair of sunnies. Tap one to see exactly where it sits on the frame.

Frame width: 119mm Lens width 45mm Lens height 40mm Bridge width: 15mm Temple length: 132mm

Full Product Specifications

All measurements in millimetres, sorted narrowest to widest. Filter it, sort it, or match it against the number you measured above.

Hey Peeps sunglasses measurements in millimetres
Style name Age Shape Frame width Lens width Lens height Bridge width Temple length

All measurements are approximate. Every pair is Polarised, Category 3, blocking 99.9% or more of UV, in flexible TPEE that bends instead of snapping.

A toddler wearing pink Hey Peeps sunglasses outdoors, seen from the side

The eye test

What a Good Fit Looks Like

If you would rather not get the tape measure out, this is the shape you are after.

  • They sit level, not sliding down the nose or tipping to one side.
  • The lenses cover the whole eye, with the top rim up near the brow.
  • The arms run straight back to the ear rather than bowing out or digging in.

The other half of the battle

Getting Them to Actually Keep the Sunnies On

It can feel like teaching a fish to juggle. These five are what make the difference.

  • Start early

    Between 12 and 24 months is when the habit sticks best. Earlier is fine too.
  • Make them routine

    Part of getting ready, right along with the shoes and the hat. Every single time.
  • Model the behaviour

    Wear your own sunnies regularly. Monkey see, monkey do.
  • Practise at home

    Try them on indoors first so they get used to the feeling before the glare hits.
  • Never make it a battle

    When they come off, say nothing, wait a beat, then pop them back on.

Got Their Number? Go and Get Their Pair.

Still torn between shapes and colours? Take the 60 second quiz and we will narrow it down for you.

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