Lululemon

Earnings up 23%
Revenue up 24%

Selling high-end yoga and athletic wear to affluent women may seem like an odd recipe for success, but Lululemon has managed to grow briskly despite the uncertain economy that has rocked many traditional retailers. Never underestimate the power of an aspirational brand.<br />
<br />
Comparable-store sales for the Vancouver-based company soared 18 percent on a constant-dollar basis in its most recent quarter, and there's no slowing down. Success has invited imitators putting out cheaper knockoffs, but the brand's strength keeps shoppers from flinching at paying $100 for a pair of yoga pants.