Pink RapidaRun trainers by adidas Performance. The trainers have a breathable mesh upper. They have a padded collar, elasticated laces with velcro strap and a lightweight non-slip sole. – This product features a moisture-wicking and breathable Ortholite® high-performance footbed.– Upper: Other Materials, Textiles– 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 (Foot Length): 16 = 81 mm17 = 90 mm18 = 98 mm19 = 106 mm20 = 115 mm21 = 123 mm22 = 128 mm23 = 132 mm23.5 = 136 mm24 = 140 mm25 = 145 mm25.5 = 149 mm26 = 153 mm26.5 = 157 mm27 = 161 mm