Outfit and Prep

Justified for Gwen in "It's Not Easy Being Gwen" as we see that her outfit is her prep school uniform.

Source: Western Animation / Ben 10: Ultimate Alien
The Tortoise's efforts to impress Rainbow Dash Rainbow Dash in her prep-school outfit while posing with the owl.

Source: Recap / My Little Pony: Friendship Is Magic S2 E7 "May the Best Pet Win!"
Clothing has really improved since the first movie, as the Crystal Prep uniforms and Sunset's new base outfit look and move more natural.

Source: Western Animation / My Little Pony: Equestria Girls Friendship Games

Cite this Source

Prep and Outfit. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/outfit/prep

Outfit & Prep. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/outfit/prep>.

Prep or Outfit. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/outfit/prep.

Google Ngram Viewer shows how "outfit" and "prep" have occurred on timeline