Perfect for evening or lazy days, sweatpants get a high-fashion upgrade. Juicy Couture wide-leg trackpants in cashmere or velour are the go-to for weekend downtime 'wear them with a biker jacket, tee and wedge sneakers for off-duty cool. After dark, choose a luxed-up pair (think bold prints, sequin-sprayed or silk) and add a blazer and heels for a sportswear-infused, on-trend look.