As a walk-on fullback at the University of Maryland, Kevin Plank was annoyed.  Every time he worked up a sweat, his cotton workout clothes weighed him down.  So, he created an undershirt made out of women’s lingerie fabric that wicked the sweat away.

It worked.  During workouts, his new undershirt was lighter.  It kept his skin cooler in the summer and warmer in the winter, Peter Guber shares in his … continue reading