OOFOSOolala Slide Women's Sandals

Im female. My feet are 9.75 inches. What size do i order. ???

is this size women's 7 or women's 8? the info is women size 7, but the selection box is women's size 8.

How can i be guaranteed the oofo slide ons are from korea?

Questions for manufacturer - do Oofos use any recycled rubber (aka used waste tires)? Are they sprayed with Microban (aka triclosan)?