Here are the top 10 trends (you should know about) for Fall 2013. That's right; we're breaking down the standout looks straight from the runways of all four — New York, London, Milan, and Paris — Fashion Week cities right here. A serious '90s grunge revival was staged at Saint Laurent, the likes of which Courtney Love would be proud. Shades of blue cascaded down the Prada, Missoni, and Carven catwalks (to name a few); high-impact details took jeweled, feathered, and appliquéd shape at Lanvin, J.Crew, and Tom Ford; and the new It shoe was grounded, thanks to lug soles, ridged platforms, and much chunkier soles. Click on for our comprehensive Fashion Week Fall 2013 trend breakdown.
— Additional reporting by Chi Diem Chau and Hannah Weil