Slip dresses have surfaced in every city this fashion month—and don’t even get us started on their street-style domination—which has us reconsidering the lingerie mainstay. Instead of relegating the boudoir staple to evening-only territory, the likes of Calvin Klein, Burberry and Alexander Wang styled the slinky numbers with grunge extras like hefty sandals, bomber jackets and understated makeup. The resulting look is sexy in an edgy, carefree way (think Courtney Love rather than Marvin Gaye). So banish your fear of satin, grab a tough-chic topper and take the trend for a spin this weekend.