While Kate Middleton is helping vulnerable children by launching a family helpline, her outfit is helping to positively impact victims of human trafficking.

The belted green dress that the royal mom of three chose for her visit to Family Action on Tuesday has a story of its own. Beulah, the brand behind the structured long-sleeve dress featuring button details down the skirt, is taking steps to end modern day slavery.

Founders Lady Natasha Rufus Isaacs and Lavinia Brennan traveled to Delhi, India, in 2010 for a volunteer mission where they encountered victims of human trafficking in a government-run safehouse.

“We experienced first hand the awful effects that modern day slavery imposes on innocent lives. But we also learned how by helping others find opportunities and employment, small acts of kindness can carry a truly significant impact of providing hope for the future,” according to the brand's website.

Kate Middleton
Kate Middleton

In addition to donating 10 percent of profits from their Beulah Heart products to the UN Blue Heart Campaign, Beulah provides jobs and education to victims of human trafficking.

In addition to Princess Kate, the brand has won over celebrities like Kate Moss, Sienna Miller and Sarah Jessica Parker.

For Tuesday's outing, Kate appears to be sporting a custom version of the brand's “Yahvi” dress. The piece is available on their website in a blush coloror olive featuring flared sleeves for $770.

Kate Middleton
Kate Middleton

Family Action works directly with vulnerable children and families through some 150 local and national services, as well as supporting professionals and organizations through training and consultancy. Their new FamilyLine uses a network of volunteers from across the country to support parents and caregivers virtually through telephone calls, email and text messaging.

The royal mom launched a new U.K. support line when she visited a charity that is central to her mission to aid kids from the earliest opportunity.

She also viewed the “Family Monsters” campaign film that was produced to mark Family Action's 150th anniversary. The campaign highlights the hidden “monsters” that many families face, including debt, addiction, lack of time together, relationship issues and mental health issues.

Meanwhile, husband Prince William is in Switzerland for the World Economic Forum. He will take part in a conversation with English broadcaster and natural historian Sir David Attenborough on Tuesday before joining a group of panelists, including New Zealand Prime Minister Jacinda Ardern, for a discussion on mental health on Wednesday.