Women's High-Tech Fitness Tops
Pair these high-tech tops in energizing colors with black bottoms and you're good to go, go, go.
By Brooke Kosofsky Glassberg
O, The Oprah Magazine | From the January 2010 issue of O, The Oprah Magazine
You'd never guess that this soft, thin tee is made of wool—warm, non-itchy merino wool.
Next: Sporty fitness skirts with built-in shorts