LOS ANGELES, CALIFORNIA: Kourtney Kardashian recently posted a photograph of herself sporting merchandise designed by fast fashion brand Boohoo.

In the photo, Kardashian flaunted a trench coat along with black boots and netted stockings.

However, the internet almost instantly slammed Kardashian's choice of clothes, questioning her supposedly 'vegan' lifestyle in connection with her Boohoo collaboration.

This comes after Boohoo was criticized in the past for allegedly rolling out unsustainable products that damage the environment and reflect the company's policy of 'greenwashing'.

Kourtney Kardashian flaunts her baby bump in stunning snap

On September 25, Monday, Kardashian who is expecting her first child with her husband, Travis Barker, flaunted her bare baby bump during a collaboration with Boohoo.

While Kardashian looked absolutely stunning in the photo, several users expressed their disagreement over Kardashian's post.

One user commented, "The absolute opposite of sustainability which I thought was your whole deal," while another user wrote, "She won’t use plastic but just launched a line with a fast fashion brand??? Lol ok."

One user went on to say, "It’s just more waste for the environment, just like ur extravagant, wasteful parties."

Another user advised Kardashian, "Girl, do better. You are having a newborn and don’t care about the environment’s future for your child."

One user remarked, "Assuming this is a sustainable collection."

Another user wrote, "I’m disappointed you’re using another fast fashion brand."

One user sarcastically referred to her as, "sustainable queen."

Another user asked, "Shouldn’t you be booing Boohoo, instead of celebrating it?"

'The Kardashians' star Kourtney Kardashian is 'mostly' vegan

According to Poosh, Kardashian is 'mostly' vegan and adheres to a vegan and plant-based diet for about 95% of her time.

For breakfast, she is in the habit of getting an avocado shake or banana smoothie supplemented with vegan protein powder.

For lunch, sourdough bread with vegan butter and pickles along with a side dish of tangerines is part of her routine.

For dinner, 'The Kardashians' star often consumes either plant-based tacos or vegan sushi.

Kourtney Kardashian claims to have 'learned so much' from Boohoo controversy

Kardashian and Boohoo first collaborated together during their 2022 fall line debut and the former was criticized for associating herself with a brand whose practices did not seem to align with environmental sustainability.

However, Kardashian claimed to have seen in the controversy an opportunity to shed light on the bigger picture.

She told Tag24, "A lot of criticism fell on me, and I actually love that because I feel like I am in the position to shine a bigger spotlight on this problem."

Further adding, "This is not one person's problem, this is a big problem in the world and for the whole fast fashion industry and the whole fashion industry."

'Keeping Up with the Kardashians' is all set to return for Season 4

'Keeping Up with the Kardashians' Season 4 will air on Hulu and Disney Plus on September 28, 2023.

In the new season, Kardashian's relationship with husband, Travis Barker, and her fourth pregnancy are expected to play an integral part.

Kardashian's ongoing stalemate and previous controversy with her sister, Kim Kardashian, is also expected to hit the ceiling as an emotional clip from the trailer has her calling Kim a 'witch', along with a statement that she 'hates' her sister.