From Public School's "Make America New York" caps to Ashish's sparkly take on the nasty woman slogan, it’s safe to say the notion of “resistance” was something of a trend for Fall 2017. Another way designers reflected the world's current state of emergency? Their collections' vibrant color palettes. Stop sign red, traffic cone orange, and caution tape yellow ruled the runways in all four cities, with designers like Joseph Altuzarra, Molly Goddard, Ferragamo’s Fulvio Rigoni, and Dries Van Noten showcasing various iterations of loud, monochromatic looks. Donatella Versace even added streaks of tangerine, electric blue, and highlighter yellow to select supermodels' strands. Whether these can't-miss-me hues are in response to the turbulent political climate or simply fashion's way of favoring the bold is really anyone's guess, but we plan to proceed by updating our wardrobes without caution. Here, our top picks from New York, London, Milan, and Paris. Warning: These pieces are not for the faint of heart.