Running
Hitting the pavement or the treadmill requires strength and endurance--but you've also got to dress the part. Choose a cute pair of mini-shorts and a colorful sports bra, so that you'll have the perfect amount of support without sacrificing a cool breeze. Just don't forget to pop in your earbuds, so that you can sing along to your favorite tunes as you sprint.
Swimming
It's no secret that a few laps in the pool does wonders for the bod, but speedos are so last century. Have a little fun with the cute lifeguards and sport a cut-out one-piece performance suit or a feisty, animal-print swim cap. With these essentials, you'll be gliding through the water at lightning speed.
Yoga
From Bikram to Vinyasa, this ages-old routine is great for getting in touch with your inner goddess (and Gwyneth). So, say Namaste in a comfy, yet body-hugging getup that will make it easy to master any pose.
Gym & Workout Classes
From stretching to weight training, the gym has loads of areas to explore--and about as many gents with potential. Therefore, be sure to do some squats in form-fitting capris and a loose, airy racer back. Just remember to keep hydrated with a totally amazing reusable water-bottle that will have you breaking a sweat with ease.
Above, from left: Oscar Mimosa Vashdi Singlet, $70, and Trixie Leggings, $105, both available at Oscar Mimosa; Nike Performance Athletic Socks, $12 the pack of 3, available at Kohl's.