Mary-Kate and Ashley Olsen, 27, have been quite successful in the fashion industry and with their accomplishment launching their label, The Row, the twins admitted that they have been into high fashion since their "Full House" days.

Back when they were sporting onesies and overalls as they made their transition from infants-to-toddlers-to-kids, on set they were receiving A list treatment, according to Us Weekly.

Apparently those star-shaped sunglasses, magenta-hued tops and all the other hip '90s fashion were actually from top designers.

In an interview with Net-a-Porter's The Edit, Mary-Kate and Ashley Olsen spoke about their high fashion experience on set.

Ashley said, "'[On Full House] we'd be in six-hour fittings three times a week, because we had to wear 12 different outfits.'

"The majority of the wardrobe was made up of adult pieces, including Chanel and Marc Jacobs, cut to fit."

Mary-Kate chimed in to say, "We were designing clothes for ourselves as we were so petite."

She added, "So I think that is when we became obsessed with fit, and now the obsession has become a profession."

As for their label, The Row, the twins insisted they wanted the brand to be unique. Ashley said, "We knew there wasn't another brand offering basics in a luxurious and contemporary way.

"If I wear certain designer brands, or too much of something, I look crazy, and I need something to break it up.

"If you are wearing a Chanel jacket and you need an anonymous piece that will show just how special that jacket is, I hope that is what The Row gives you."

To read the Olsen twins' interview with The Edit along with their photo shoot, click HERE.

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