The tennis pro’s comfy ensemble features a casual-meets-glamorous combo: a matching sweat set paired with glitzy jewels. Williams’ sold-out sweatshirt and joggers are from her clothing line, S by Serena (you can find similar options, below). Her diamond chain necklace from her eponymous jewelry brand, Serena Williams Jewelry, is still available to shop. The laid-back outfit is fashion goals.

Union, a fashion maven, recently donned a pair of gray wide-leg bottoms with a paper-bag waist and a matching V-neck sweater, both made by Project Runway alum, Samantha Black. With her pant’s inventive silhouette, Union’s look felt equal parts comfy and fashionable. Her tan and white sneakers from husband Dwyane Wade’s brand, Way of Wade, are unfortunately sold out, but her Sammy B sweatsuit is still ready to shop, below.

Kourtney Kardashian curated a must-try look of sweatpants, a shell puffer jacket, and an ‘ugly’ footwear moment of socks and sandals. The Poosh founder paired her fuzzy Rick Owens x Birkenstocks shoes with socks of the same color. The highly-hyped up collab between Owens and the shoe brand has since sold out, but there’s plenty of classic Birks to choose from when recreating Kardashian’s look yourself.

Rihanna knows what she's doing when it comes to putting her unique spin on sporty items. For her army green look, pictured here, she went for a high-fashion-meets-casual-comfort look. She paired her sweatpants with white pointy-toe heels and carried a miniature Goyard handbag. On top, the singer wore a black lace cami, a striped Marni cardigan, and a chocolate-colored shearling coat from R13. The key takeaway here: feel free to experiment with luxe touches when styling your sweats.

Jenner’s simple outfit in all of its cozy glory is definitely one to get behind. She wore a pair of sparkling white Air Force 1s and her favorite Velvet Canyon sunnies while her green knit top instantly elevated the plain black sweatpants. Though her exact sweater by Ottolinger is sold out, Coohem offers a mirroring take that looks just as comfy for when you’re on a long flight.

Gigi is no stranger to a color-coordinating two-piece moment and this colorful outfit, in particular, is a tour de force. Her sunny polo and jogger from Amiss Conception directly tapped into the 2021 color trend of joyful yellow hues. The new mom showed off even more of her style know-how by opting for hot pink running shoes and accessorizing with a shearling Prada bucket hat. Lastly, a line of rainbow huggie earrings decorated her ears, which was a not-so-subtle nod to the maximalist jewelry trend.