I want to get DS another pair of See Kai Run before he is out of them (his size 8 still fit but he will outgrow them soon...he is not even 26mos! So, I want to get 1 or 2 pairs of size 9. I will guess that he will wear them from May through the summer. I am looking at any of the $28 ones and the sandals (besides Isaac b/c he had those last year.) Thanks