She was named the new brand ambassador of Boohoo with two collections for them - and sustainability in mind.
And on Tuesday night, Kourtney Kardashian sat in the front row of her fashion show with husband Travis Barker during New York Fashion Week.
The 43-year-old star wowed in a black lace jumpsuit and leather jacket as she beamed during the Boohoo X Kourtney Kardashian fashion show.
Kourtney sat in the front row with Travis as they both happily watched the fashion show, while holding on to a large bouquet of roses.
Kourtney and Travis also engaged into a steamy PDA session during the show.
The mother of three donned a long-sleeved sheer jumpsuit that revealed her matching black bralette and shorts; she added an ankle-length leather coat, boots and small framed sunglasses.
The jumpsuit from her collection, called the Kourtney Kardashian Barker Lace Long Sleeve Catsuit, and retails for $35; the jacket was also from her collection - it is called the Kourtney Kardashian Barker Faux Leather Overcoat, retailing for $90.
Kourtney sported a choker, earrings and gloves to round out her fashion look, opting for sleek, center parted tresses.
Travis showed off his shirtless chest in a leather vest, adding coordinating trousers, a spiky necklace and small framed sunglasses.
The Blink-182 drummer, 46, sweetly gazed at Kourtney during the show with a grin ear to ear on his face.
Hours before the show, Kourtney took to her Instagram to address the backlash from the sustainability ambassador title - due to the fact that Boohoo is fast fashion and often ends up at the landfill.
Her collaboration with the company also includes social content in addition to the two collections.
Kourtney wrote on Tuesday on her Instagram: 'I went back and forth about this collection @boohoo because the first thing I think about when I hear the words "fast fashion" is that it's bad for our planet.'
She continued, noting that she expected the 'backlash' 'because the two just don't go hand in hand' but hopes the partnership will end up raising awareness on the 'impacts of fast fashion on our planet.'
Adding: 'I thought about how pushing Boohoo to make some initial changes and then holding them accountable to larger change would be impactful. It's definitely making some noise which is exactly what I was hoping.'
'I certainly don't have all the answers, but for someone who has done a fast fashion line in the past, which didn't get backlash because I was not calling attention to trying to make better changes, I feel proud about doing it with intention and purpose.'
'I will elaborating on their changes, how we've made this line more sustainable, and what I've learned was as consumers can do to help... all to come!!'
The fashion show consisted of her first collection with the brand, including a concert-style tee for Blink-182 - Travis' rock band, as well as red shine pants.
The collection also included sheer lace pieces as well as graphic see-through ones in a playful pattern.
The Boohoo X Kourtney Kardashian collection included a lot of faux leather as well as cut-out pieces; There was also a bubble gum pink patent jacket as part of the collection.