Kate Hudson shows off taut tummy in long-sleeved bikini for sultry selfie posted onto Instagram

She is the co-founder of fitness brand Fabletics.

And Kate Hudson is proving firsthand that the workouts in her athleticwear work.

The 41-year-old actress took to Instagram to proudly flaunt her taut tummy in a bikini selfie posted on to Instagram on Monday.

 Kate looked in absolutely fantastic shape as she sported a long-sleeved Andrea Iyamah two-piece swimsuit featuring a reptile print.

The red swimsuit features a low-cut plunging neckline along with high-waisted bottoms as it retails for $180. 

She captioned the image: ‘This suit tho @andreaiyamah’ 

Earlier in the day she took to Instagram to tell her 12million followers that she was struggling with garnering enough ‘Monday motivation’ to work out.

She sipped on coffee and even made up her own hilarious jingle for her athleticwear brand to try to get herself into workout mode.

Kate captioned one of the videos: ‘#cofounder of a motivational athleisure brand @fabletics. Currently been leaning on the leisure part… #MotivationMonday.’

The Almost Famous actress was very active on social media as she shared a cute video of her one-year-old daughter running on the beach wearing a cute pink poncho.

She shared the sweet video of the child, who she shares with husband Danny Fujikawa, with the Star Wars theme by John Williams playing in the background.

Kate captioned the video: ‘The Earlier Rise of Skywalker: The force has never been so exhausting #ToddlerLife #starwars.’

 She has known Rani’s dad for 15 years, as Danny is the stepbrother of her best friend.

They duo were first believed to be a couple in March of 2017, when they were seen showing affection outside of a juice shop in LA, according to Us Weekly. 

Goldie Hawn’s daughter welcomed her first child with Danny in October 2018.  

Kate also shares son Bingham, eight, with ex-boyfriend Matt Bellamy, and eldest child Ryder, 15, with ex-husband Chris Robinson.