Pink Sunray Protect 2 sandals by NIKE. The sandals have velcro straps at the ankle. They have a closed toe, a cushioned footbed and a flexible non-slip sole. – Upper: Other Materials– Lining: Textiles, Other Materials– 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): 15 = 83 mm 16 = 91 mm 16.5 = 95 mm 17 = 100 mm 18 = 104 mm 18.5 = 108 mm 19 = 112 mm 19.5 = 116 mm 20 = 120 mm 21 = 125 mm 21.5 = 130 mm 22 = 133 mm 22.5 = 138 mm 23.5 = 142 mm 24 = 146 mm 25 = 150 mm 25.5 = 155 mm 26 = 159 mm 26.5 = 163 mm 27 = 167 mm