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Our Sizing

Little feet are our passion. We're all for wiggle room for toes and a fit that feels like bare feet. So we study little footprints and trace little toes, crafting every design for healthy foot development.

Lying down, rolling over from side to side, playing with feet & hands, pushing up, crawling on hands & knees, learning to stand & taking first steps

- Highly flexible joints & toes
- Proportionally shorter toes
- V-shaped foot, no arch & splayed toes
- Thick fat pad on top of foot & arch area

Protection, maximum foot movement & flex

Walks without help & busily jumps, leaps & turns

- Flexible joints & toes
- V-shaped foot, thick fat pad
- Arch begins to form

Protection, flexibility & durability

Balance is more stable, with multi-directional movements, including running, jumping, leaping, turning & climbing

- Flexible joints & toes begin to lengthen
- Reduced fat pad on top & in arch areas

Articulation & flexibility for forefoot & toes, some cushioning, multi-directional flexibility & tread

Size chart

*Age is approximate. Please measure for best fit.

How to Measure Your Child's Feet:

Have your child stand on a piece of paper. Mark the longest points of the foot, from the longest toe to the back of the heel. Measure this distance in centimeters to get the length.

Allow .5 - 1 cm extra when selecting shoe size, more if the child will wear socks with the shoes. Your child's toes will thank you!

If your child's foot falls in between sizes, round up. The extra room won't be there for long.

Children's feet grow quickly. Measure at least every 2 months during the first year, and every 3 months from 1–8 years old. You never can tell when your child will have a growth spurt!

Smaller, See Kai Run & Kai printable sizing chart

View Sizing

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