We have been using ours for about a month. the item was fulfilled by Amazon therefore I knew I had total coverage if something didnt work properly. actually it is a little too stiff. These actually stayed in my ears! Well definitely keep buying this model/brand until she outgrows their largest size. The rubber sole is thick and has deep treads for good traction, even when wet. I ordered the 7/8 and I?m a size 8. 00 better quality than this Amazon-Adidas POOR quality item THIN as bubble-wrap, too WIDE, with NO arch and is a One-Time-Use, dollar-store item for 20. Very poor quality. UPDATE: Jan 13th 2019!