* Early Episodes: Misty starts with her signature blue and white outfit with a yellow tank top. This is her most recognizable look.
* Orange Islands Arc (Episodes 89-116): While this arc is happening, Misty gets a new outfit with a green and white color scheme and a light blue tank top. This outfit is often associated with the Orange Islands and is a popular look among fans.
* Johto Journeys (Episodes 117-169): For the Johto region, Misty keeps her Orange Islands outfit.
* Advanced Generation (Episodes 170-276): As the series moves into the Advanced Generation, Misty starts to wear a new outfit with purple and pink hues.
* Later Appearances: Misty occasionally appears in later seasons, and she tends to wear a variety of outfits reflecting her current interests or location.
It's important to note that there's no one definitive time when Misty "changes outfits." It's an ongoing process throughout the series as her style evolves and she experiences new adventures.
If you're looking for a specific outfit, you can try searching online for "Misty Pokemon outfit" and specify the season or arc you're interested in.