Who: Poppy Delevingne.
When: Wednesday, March 16.
Where: A party hosted by Chopard at Baselworld 2016.
What: A bottle-green velvet suit by Frame Denim.
Why: They say green is the hardest color to pull off, but Delevingne does it effortlessly — and, of course, there's the essential sleek gold watch. It is Baselworld, after all.