Most women fake it

More than half the women who wear workout gear don't work out. And men aren't far behind.

The rest just like wearing active wear and contribute to a growing fashion trend worth $2 billion this year.

One Australian business woman has transformed what people wear and her fashion label is clearly among the world's leading brands – in sales of lycra and sweat pants.

Active wear brand Lorna Jane is a global fashion label, but many wouldn't know this is actually Lorna Jane, the person from Australia.

"I didn't set out to change women's fashion, I was just finding active wear that I wanted to wear and that would inspire me," Jane said.

It's been no overnight success. In fact, it has taken 25 years to build a brand now worth more than $600 million with 150 stores worldwide.

"Sixty-five per cent of women who wear active wear don't work out in it, so there's most definitely been a shift," Jane continued.

Take a walk through any shopping mall and you'll notice a lot of people wearing gym gear without a gym in sight.

Here is one thing to understand about women. No matter what we are doing if we feel better and feel more confident in our own skin we are going to perform better.

Active wear is now the fastest growing category in fashion. It will generate $2 billion in sales this year, which is up $200 million from last year. Little wonder brands not known for fitness gear want a piece of the action.

Not only are we seeing country road and many other retailers in this space but we're seeing the discount department stores take place in this space as well, it's very much a trend.

"I'm really proud to be taking an Australian brand to the world," Jane said.