First 9 Minutes of Spider-Man: Into the Spider-Verse

[WhyNott]

What if its just a wrinkle in the material.

[gbtygfvyg]

It's a skin-tight suit. A fictional skin-tight suit at that, they never wrinkle.

[LZTYBRN]

it is very very subtle but you can definitely see the suits wrinkling around joints if you go frame by frame

studying gwens suit frame-by-frame, it's definitely probably texture stretching, another instance of it can be seen here

https://files.facepunch.com/forum/upload/57926/c1159839-bad4-41b5-a83d-53c336c6152f/image.png

on the knees and thigh above knee in particular it seems there's extra UV space alotted to compensate for when the knees are bent, resulting in a slight visual artifact when the knee is extended