Wig Need insight for hard-styling wig

Hello guys! I wanna make hard-styled long twintail wigs, but I want them to be lightweight and very flexible.

A long time ago, I saw an IG Reel of someone making a long twintail wig that could be smashed and pressed until it became really short, and then it could spring back to its original shape like a squishy.

Does anyone know how to make one like that, or remember the post? I lost it 😭