Meghan, the Duchess of Sussex, surprised a group of women at a photoshoot for her upcoming capsule collection in partnership with the charity Smart Works, she shared in an Instagram story Wednesday. The Duchess shared the news on the official account she shares with her husband, Prince Harry.

In two short clips of Meghan surprising unsuspecting women as they come try on the clothes that she is helping design, she wrote: "Behind the scenes...A sneak peek at the @SmartworksCharity capsule collection shoot, ahead of the autumn launch."

"An initiative supporting the Smart Works collective which will equip women entering the work force [sic] with the key work wear [sic] essentials they need. Coming soon...," she added over another clip.

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Spotlight on: Smart Works We are proud to be supporting a very special initiative this autumn for @SmartWorksCharity! After quiet visits to Smartworks over the last year, The Duchess was moved by the impactful work being done by this non profit organisation that helps women into the workforce, equipping them with both the skills and clothes they need to feel job-ready. Throughout her visits she noticed that while the donations were plentiful, they were also notably a combination of mismatched items and colours which weren’t always the right stylistic choices or sizes that didn’t necessarily “suit” the job at hand: to make a woman feel confident and inspired as she walked into her job interview. As a result, launching this autumn, The Duchess will be supporting a collective to help equip the women of Smart Works with the key workwear essentials they need as they enter into the workplace. This initiative is supported by four generous brands who share the vision to empower the women of Smart Works to look and feel 💯 as they bravely venture in to what can often be a daunting environment for those who have been out of the job market. The brands have come together to work towards this united force for good, “[reframing

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The video posted on her Instagram story was from a shoot that took place in London on Wednesday. A source told ABC News' Royal Contributor Omid Scobie that Meghan wanted to surprise the women from Smart Works and so she showed up once the photo session had already begun.

The upcoming capsule collection of "workwear essentials" will benefit Smart Works, a U.K. charity for women for which Meghan is patron. The collection will be available this fall.

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Meghan partnered on the collection with her friend, designer Misha Nonoo, as well as Jigsaw, a British fashion line, and U.K.-based retailers John Lewis & Partners and Marks & Spencer.

PHOTO: Meghan Markle is seen ahead of her visit with Prince Harry to the iconic Titanic Belfast during their trip to Northern Ireland on March 23, 2018 in Belfast, Northern Ireland.
Charles McQuillan/Getty Images
Meghan Markle is seen ahead of her visit with Prince Harry to the iconic Titanic Belfast during their trip to Northern Ireland on March 23, 2018 in Belfast, Northern Ireland.

For each item purchased from the collection, one item will be shared with a woman at Smart Works, according to the @SussexRoyal Instagram post announcing the collection.

"Not only does this allow us to be part of each other's story; it reminds us we are in it together," Meghan writes in an essay on the collection in the September issue of British Vogue.

ABC News' Katie Kindelan contributed to this report.

PHOTO: Meghan, Duchess of Sussex, poses for photographers upon arrival at the 'Lion King' European premiere in central London, July 14, 2019.
Joel C Ryan/Invision/AP
Meghan, Duchess of Sussex, poses for photographers upon arrival at the 'Lion King' European premiere in central London, July 14, 2019.