Navy Oppien sneakers by Reima. The sneakers have a rubber non-slip sole. – Velcro fastening on the top.– Padded collar.– Pull-tab on the shoe tongue and at the back of the heel.– Cushioned footbed.– Padded tongue.– Fluorocarbon-free.– Upper: Textiles, Other Materials.– Lining: Textiles.– 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 (Insole): 19 = 127 mm20 = 132 mm21 = 138 mm22 = 145 mm23 = 152 mm24 = 158 mm25 = 165 mm26 = 172 mm27 = 178 mm28 = 185 mm29 = 192 mm30 = 198 mm31 = 205 mm32 = 211 mm33 = 217 mm34 = 225 mm35 = 231 mm36 = 238 mm37 = 244 mm38 = 251 mm39 = 258 mm