I am happy to see that garter stitch is becoming a trend for the fall. I came across this sweater in a British Vogue, which I picked up while waiting for a connection at Heathrow. It is a cashmere rollneck, worn back to front, from JW Anderson.
I might have to whip up a chunky, garter stitch infinity scarf like this one by Andrea Sanchez for next winter! Pattern available for free on Ravelry.