4. Sweater Dresses What's sexier than a woman in leggings? According to the guys, it's a sweater dress over leggings. Who knew? "When girls wear sweater dresses over leggings, their bodies always look fantastic. Sweater dresses hug all their features in a perfect way," explains Chris, 26. Alex, 26, completely agrees. "A sweater dress with black leggings that still accentuates some of her curves is the perfect winter look."