same material, measurements do look the same on the website which is contrary to marketing and I hope isn't true. I'm getting rid of some SL-100s cause they run too tight and the 30 BSPs fit great. I hope the 32BSPs follow suit because they're replacing my SL-120s very shortly. I can share my thoughts when they come in.
http://www.endclothing.com/catalog/product/view/id/236068/s/nike-flyknit-trainer-chukka-sfb-sp/white are gone, sorry pal http://www.endclothing.com/catalog/product/view/id/236067/s/nike-flyknit-trainer-chukka-sfb-sp/a few sage left