That's several things, both related to Aspergers.
Many Aspies have (some serious) sensory issues with certain materials, especially with clothing.
I can't stand wool for example (with the exception of Merino)
Most Aspies don't like being touched. Not by strangers anyway, but some even have trouble of that kind with their partner.
Many Aspies are "stimming", repetitive movements, stretching/relaxing muscles and so on, like rubbing fingers at each other. As a child my thumbs where near constantly bleeding (a bit), because I was scratching them without any need.
_________________
Deep into that darkness peering, long I stood there wondering, fearing,
Doubting, dreaming dreams no mortal ever dared to dream before (E.A.Poe)