the apparently ridiculous amount of materials science needed to wear clothes while jumping.

I mean the article basically just says they custom tailor them to the athletes' bodies, and that a lot of athletes also glue it on just in case. Neither strikes me as particularly crazy or materials science-y, besides maybe the creation of body glue that can hold on through sweat. I don't think of elastic or artificial fibers as being like, a ridiculous or undue amount of materials science, they're also just the cheapest option at this point