Size and Fit

Great shoes start with the right size—because growing feet deserve growing space.

Size Chart

Aretto Age range CM - Heel Toe EU UK
S0 0-1 yrs 10.7 - 11.5 cm 18 - 19 3.5 - 4
S1 1-2 yrs 12.1-13.4 cm 20 - 22 4 - 5.5
S2 2-3 yrs 14-15.3 cm 23 - 25 6 - 7.5
S3 3-4 yrs 16-17.3 cm 26 - 28 8.5 - 10
S4 4-6 yrs 18-19.3 cm 29 - 31 11.0 - 12.5
S5 6-8 yrs 19.9-21 cm 32 - 34 13.0 - 2.0
S6 8+ yrs 21.6-23.3 cm 35 - 37 2.5 - 4.5
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How to Measure

Aretto shoes are designed around one truth: fit comes first. Our patented sizing adapts as kids grow, but it all begins with measuring right. Here’s how to find your perfect Aretto size.

0 1

Paper to Wall

Place your child’s foot flat on a sheet of paper - heel touching a wall.

0 2

Heel to Wall

Trace around it gently using a pen or pencil.

0 3

Measure in CM

Measure from the heel to the longest toe in centimetres.

0 4

Match Your Size

Match the measurement with our size chart to find the perfect fit.

Do’s & Dont’s

  • Measure barefoot.
  • Measure both feet—one is often bigger.
  • Longest toe isn’t always the big toe.
  • Always go with the larger measurement.
  • Never size down—growth doesn’t shrink.

Aretto Fit

The right fit feels effortless - space for toes to spread, soles that follow natural movement, and comfort that doesn’t disappear with growth. It’s not just about size, it’s about shoes that feel right, every single day.

FAQ

Designing the best toddler shoes means keeping up with the endless energy of little adventurers while supporting