FITTING: Shoes vary so please compare foot length with insole measurements, allowing 3/8" for wiggle room & growth (consultations always OK). This is on the full side of medium. Larger sizes in Girls Shoes. Euro 25/US 9 = 6.5"; Euro 26/US 10 = 6.75"; Euro 31/US 1 = 8"; Euro 32/US 2 = 8.25"