Short answer
Grade school (big kids): 3.5Y to 7Y on Nike’s US chart. Preschool (little kids): 10.5C to 3 and toddler: 2C to 10C at Kids Foot Locker. Release prices reported for recent kids’ pairs: $140 for the LeBron 22 grade school, $90 for the Witness 9 grade school and $85 for the Witness 9 preschool. Leave about a thumb’s width at the toe. Nike says the Witness 7 big kids pair runs small.
Kids’ size runs
Kids’ size runs for LeBron shoes
| Run | Also called | Sizes | Source |
|---|---|---|---|
| Grade school | GS, big kids, Y sizes | 3.5Y to 7Y | Nike US chart |
| Preschool | PS, little kids | 10.5C to 3 | Kids Foot Locker |
| Toddler | TD | 2C to 10C | Kids Foot Locker |
| Infant | Baby | 0 to 4 | Kids Foot Locker |
Nike’s own kids’ chart: Nike kids’ footwear size chart.
Release prices for kids’ pairs
| Shoe | Kids’ release price | Source |
|---|---|---|
| LeBron 22, grade school | $140 | Sole Retriever |
| Witness 9, grade school | $90 | Sneaker Freaker |
| Witness 9, preschool | $85 | Sneaker Freaker |
Which LeBron for which kid
-
01Most kids
LeBron Witness, big kids
Best for: school teams and rec leagues, especially fast growing feet
- Sizes
- 3.5Y to 7Y
- Witness 9 GS
- $90 at release
- Lowest cost LeBron for a foot that will outgrow it in a season
- Witness 7 big kids runs small per Nike
-
02Fans
Flagship LeBron, big kids
Best for: older kids who want the same shoe as the pros
- Sizes
- 3.5Y to 7Y
- LeBron 22 GS
- $140 at release
- Full family sizing on the LeBron 21
- Big kids’ versions of the LeBron 20 and 21 are listed in our shop feed
-
03Preschool
Little kids’ LeBron
Best for: little kids, 10.5C to 3
- Witness 9 PS
- $85 at release
- Look for a strap or easy entry closure
- Let them stand when you check toe room
How to size a growing foot
- Measure in the afternoon, when feet are largest, using Nike’s tracing method.
- Leave about a thumb’s width past the longest toe.
- Check again every few months; kids’ feet can grow a size in a season.
Moving up from 7Y? See adult LeBron sizing.
Questions people ask
What size is grade school in LeBrons?
Grade school, also called big kids, runs 3.5Y to 7Y on Nike’s US chart. After 7Y a child moves to men’s sizes, where a 7Y is roughly a men’s 7.
What is the difference between GS and PS LeBrons?
GS (grade school) covers big kids, 3.5Y to 7Y. PS (preschool) covers little kids, 10.5C to 3 at Kids Foot Locker. PS pairs often have easier closures for small hands.
Should I buy kids’ LeBrons a size up?
Leave about a thumb’s width past the longest toe, not a full size. Too much room makes the heel slip and can cause blisters and rolled ankles. For the Witness 7 big kids pair, Nike itself suggests a half size up because it fits small.
Are kids’ LeBrons the same as adult LeBrons?
They share the name and look. Kids’ versions can differ in materials and cushioning, so read the listing details rather than assuming the adult specs.
Sources
Last reviewed October 29, 2026. Models, colorways and listings change; check the size chart and product details on the listing before you buy.