vacation outfit
an outfit bought weeks or months in advance to only be worn for the first time on vacation. most likely to dressy or trendy for the enviroment they will be wearing it in.
"Did you see that girls outfit? She's a little over dressed for Flordia isnt she?"
"Must be a vacation outfit, shes probably been saving it for a while."
"Must be a vacation outfit, shes probably been saving it for a while."