Yellow Plagette Strap sandals by Pom d’Api. The sandals have a leather upper. – Buckle closure at the ankle.– Leather insole.– Non-slip rubber sole.– Upper: Leather.– Lining: Leather.– Sole: Other Materials.– Please note that when you purchase shoes for your child, you should select a size that is 1.5 cm larger than your child’s foot. Wellies and boots should be up to 2 cm larger, for extra socks and insoles.Size Guide (Foot Length): 24 = 139 mm 25 = 145 mm 26 = 151 mm 27 = 157 mm 28 = 164 mm 29 = 171 mm 30 = 178 mm 31 = 185 mm 32 = 192 mm 33 = 199 mm 34 = 206 mm 35 = 213 mm 36 = 220 mm 37 = 227 mm 38 = 234 mm 39 = 241 mm 40 = 248 mm