I buy a pair of Chaco every summer.  I love them, I wear a woman's size 7 and purchase the big kid size 5 and it fits perfectly.  I do not like the toe loop in the adult Chacos. I love the comfort and fantastic arch support!! My old Chacos are still perfect.  When they get dirty, just throw then in the washing machine; they come out like new. Super easy on and off and I get compliments all the time!