Very big. I found the construction of the rack to be very nice and in parts "overbuilt" compared to the models that cost about $150 less. Sadly I have found these to be unwearable and a complete waste of money. Buying one for stocking stuffers for everyone on my list. 3-4mm dick wieder drüber gelegt und funktioniert einwandfrei. of the item, I was worried these sandals would be flatter than I wanted, but the heel is 1-1. The Cloud X2 version has a softer foot bed and it made wearing them a dream (my daughter likes the regular footbed which is more rigid, like a Croc, but those were not comfortable for me at all, which is why I had sworn off Chacos from the get go). I also like the their arch support, my flat feet did not feel any pain after a whole day shopping yesterday. Hands down, these will never ever sink into the unintended zone. Unfortunately this is also too loose.