Somebody bought the wrong size. I wish I could blame my wife, but this isn't her fault.
If you aren't familiar with these sandals, Chacos are very comfortable and long lasting. My first pair lasted over 5 years and hundreds of miles. Since they are waterproof, I can wear then in the shower, wading streams or hiking in the desert.
These are the Z/2 model, New with black straps, Lightly used with Blue/Black straps. I can't find any for less than $85-95 - so, I just bought another pair of size 10s for $95.
Here is the factory website:
http://www.chacousa.com/US/en-US/Produc ... am-Unaweep
New, Black Pair - $55 + shipping
Lightly used Twilight Pair - $50 + shipping
My stupidity is your gain.