How to pick the right kids size the first time

Age-based sizing varies wildly between brands. Height is a far better predictor: measure from the floor to the crown with shoes off, then match to the size chart on each listing.

For jackets and sweaters, size up once so a layer fits underneath. For bodysuits and leggings, stay true to size — extra fabric bunches and irritates.

If a child sits between two sizes, choose the larger one and check the waist adjuster. Most of our sellers offer free size exchanges within 30 days.