I don't know if slow shopping is actually a thing or not. There is a slow food movement though that encourages buying and cooking local food, knowing where our food comes from and awareness of the environmental impact of our food choices. I think of WithAPast and similar websites as a kind of slow shopping initiative.
It seems as though 'Fabric or Textile Arts' are attracting much more attention lately. I myself have a somewhat new found appreciation for this often under-appreciated art form, so I'm quite happy to see the Textile Arts seemingly enjoy a resurgence of sorts.