Serena Williams is one of 50 athletes stepping in to help Kim Kardashian launch her Skims collaboration with Nike.
After several months of anticipation, the "Keeping Up With the Kardashians" star is set to release the NikeSKIMS line on Friday, September 26.
The new line will include 10,000 unique mix-and-match activewear looks in four collections, Matte, Shine, Airy, and Vintage Seamless. The gym-ready designs were created with varying levels of support and flow using Nike's Dri-FIT technology and SKIMS' sculpting ability.
On Monday afternoon, Williams, 43, shared a marketing plug on Instagram showing off Kardashian's new line, which includes trendy leggings, form-fitting sports bras, and bike shorts.
She captioned the post, "I feel unstoppable when I’m training in NikeSKIMS. NikeSKIMS arrives September 26th."
The 23-time Grand Slam winner included a carousel of photos in the post, showing off herself modeling the new designs.
In one IG snap, the tennis star's sporting a brown crop top and matching leggings with the Nike swoosh and "SKIMS" monogrammed on the back. In another photo, she's sitting on the floor wearing a one-piece form-fitting piece of activewear.
Williams is also featured on the NikeSKIMS website where she raves about the brand, saying the fabric on the clothing, "feels like butter on your skin."
MORE: Serena Williams shares cryptic post after weight loss and mental health challenges
Kardashian and NikeSkims has recruited several other female pro athletes to star in the campaign, including Jordan Chiles, Sha'Carri Richardson, Madisen Skinner, Chloe Kim, Nelly Korda, and Romane Dicko.
It's not surprising that Kardashian is entering the sportswear market, as she's frequently spotted working on her own fitness journey.
In an interview with "Vogue" over the weekend, she admitted that, "I love to workout. It's my therapy."
"To me it just made sense," she said. “Skims is very body-oriented—we do swimwear, loungewear, shapewear—so our next evolution was that we really wanted to do activewear. Our dream was to work with Nike: Their legacy, innovation, and athlete insights—it was the perfect thing to mix with Skims, and our dedication to the female form.”
Kardashian describes her new line as "versatile" and says it was important to offer pieces that can fit into a woman's busy lifestyle.
"You can wear some of the pieces out at night and look really great, or there’s super casual pieces strictly for working out,” she said. “I wanted people to feel like there was something for everyone."
The NikeSKIMS line will be available in sizes XXS to 4X, with prices ranging from $38 to $148.
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