Yes! It's about time, a good swath of American women who work out are saying.

Nike (NKE) - Get Report has introduced a line of stylish fitness wear for plus-size women, who may want the prestigious swoosh on their gym wear.

The need has been around for some time, and represents a $20 billion retailing bonanza, according to NPD Group, at a time when retailers are struggling to retain and attract new customers.

According to the latest findings from the Centers for Disease Control, some 38% of women in the U.S. are obese. Worldwide, a third of women are characterized as overweight or obese, reported the Institute for Health Metrics and Evaluation (IHME). The IHME added that no country has successfully reduced its obesity rate in more than 30 years.

Among U.S. teens, the percentage of those purchasing plus-size clothing has grown almost twofold, now at 34 percent, compared to 19 percent in 2012, according to the NPD Group.

All of these statistics say, of course, that the customer base for plus-size clothing from Nike and others does in fact exist. 

Here's a look at Nike's first-ever plus-size line.