The developer's description, from the game's Steam store page.
You’ll look like teen royalty with these styles from The Sims™ 4 Mean Girls Capsule Kit*. Mix and match Y2K styles, get out your Burn Book, and don’t forget that on Wednesdays we wear pink.
Create Your Own Plastics — Bring iconic characters to life, or steal their style for your original Sims. Own the halls in preppy skirts, show everyone you’re a COOL mom in a velour track suit, accessorize with a bit of bling, and more.
Millennial Mix’n’Match — Make your clique the most stylish squad around in everyday Y2K styles with a hint of glam. There are a variety of swatches to play with so you can make your own looks. We’re sorry if anyone gets jealous of you, but you can’t help being popular.
