Back to Basics: 5 Workout Wardrobe Essentials

In the past, you might have opted for whatever sneakers suited your style, but if you're serious about working out at the gym (and not just running), skip the running-specific shoes, and invest in a pair of cross-trainers. Ideal for group fitness classes, boot camp, and weight training, these lightweight and supportive Nike Free 1.0 Cross Bionics ($95) keep you feeling stable on your feet and in control. Once you rock a pair of cross-trainers at the gym, you'll never go back.