The model made the announcement while attending a Reebok press tour in Tokyo, Japan, where she gave people a first glimpse of the trainers from the 'Future Nostalgia' collection.
The trainers come in two different bold designs: black and yellow, which Hadid was wearing during the press event, and white and hot pink, which was shown in a glass display.
Hadid and Reebok based the design for the trainers on the brand's famous Freestyle Hi sneaker, which was first released in 1982 and was, according to Reebok, the first ever fitness trainer designed specifically for women.
The model has explained that she took a look back at Reebok's decades-old repertoire when brainstorming for the new range.
"This collection is about looking at the past and reinterpreting that creative boldness for today, for women who define their own style boundaries and aren't afraid to challenge convention," she says.
"I wanted to take classic Reebok clothing patterns and shapes and incorporate new cuts/crops, fresh colourways and fabric/fits that I knew would be comfortable to workout and sweat in.
"The 'classic nostalgia' idea came from how I described wanting to feel in these clothes, and I love what each element of the collection represents - from the empowering identity of the Freestyle to the fierce statement t-shirt. Each piece feels personal to me and my style."
The autumn/winter Reebok x Gigi Hadid capsule collection is going to be available to purchase worldwide from December 7.
The six-piece collection features an array of footwear and clothing, including an updated version of Reebok's Freestyle Nova Ripple trainer and the brand's Aztrek trainer, which made a recent comeback.
Numerous people have been expressing their excitement over the collection, with many praising its bold colour scheme.
This isn't the first time the model has collaborated with the sportswear brand.
Hadid is one of the faces of Reebok's 'Be More Human' campaign, alongside other notable individuals including Ariana Grande, Gal Gadot and Danai Gurira.
The aim of the campaign is to celebrate and empower women who are making positive changes around the world.
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