Love my 437 workout sets! The fit is flattering, the fabric is incredibly comfortable, and everything stays in place during workouts. Stylish, high-quality, and makes me feel confident every time I wear it.
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BEST DRESSED IN THE STUDIO
This classic tank-style active onesie is designed with contouring seam details to define your waist and bum, plus a signature front and back waistline. Adjustable elasticated straps and a low straight neckline create a sleek, minimal look, while the 6” inseam keeps things versatile. Finished with a minimalist 437 logo at the center front for a clean, elevated look.
Overall rating: 4.9 / 5 from 60 reviews.
Love my 437 workout sets! The fit is flattering, the fabric is incredibly comfortable, and everything stays in place during workouts. Stylish, high-quality, and makes me feel confident every time I wear it.
Nikki Patchanee P. 5/5 Verified
Love this onesie, soft and fitted. Got it in Small. for reference I usually wear 6/8
Jinny I. 5/5 Verified
For reference I’m 5’5 and 125lbs, I usually wear a size 25 jeans and I’m a 34C I got a size XS and it fits perfectly! The quality is the perfect thickness and the shape is so flattering, it accentuates all the right places. This would be perfect to throw on for errands or even wear to a Pilates class.
Erica B. 5/5 Verified
So cute and classic. I’ve been wearing this outfit over and over again!
Steph S. 5/5 Verified
Love it fits true to size!
Savannah P. 5/5 Verified
I love my 437 onesies!! They are so cute and comfortable! :) can’t wait to buy more colors!
Ashli O. 5/5 Verified
Absolutely love my one piece, so cute and comfortable
Kimberly A. 5/5 Verified
The quality is amazing💕
Coral G. 5/5 Verified
This piece is the definition of perfection. I love it
Kirsy G. 5/5 Verified
The cutest & most flattering one piece! Obsessed with 437’s buttery soft yet sculpting material !! I need in every color
Nicole B. 5/5 Verified
I love everything you guys do <3
Gunes Y. 5/5 Verified
such a great piece, flattering in all the right places i just wish the shorts were a bit shorter
Letty M. 5/5 Verified
I love this one z!
Hyojin B. 5/5 Verified
My first 437 order and I am so impressed by the quality. Thick without being heavy or hot, perfect for Pilates or strength. So flattering!
Sarah O. 5/5 Verified
The best!
Laura C. 5/5 Verified
Hot Pilates approved! I love the way it fits and how it snatches my body, the material feels so nice on my body and everything stays in place! I got a small and fit perfectly
April D. 5/5
Amazing onesie!!
Patricia C. 5/5 Verified
Love this set! I got so many compliments on it and it is so comfortable!
Jennifer L. 5/5 Verified
Loved this one piece
Deedee R. 3/5 Verified
I absolutely LOVE the onesie, I'm wearing a medium, I have a curvy figure and fuller chest and this piece did an amazing job showing off my curves in the most flattering way...the fabric is so soft and comfortable and this was the perfect theme park fit...incredibly breathable and stylish. This is my third onesie from 437 and I can confidently say it won't be my last!!
Kennedy T. 5/5 Verified
The fabric is such good quality and fits perfectly! I love it sm it’s cute!!!
Precious D. 5/5 Verified
So comfy and cute!
Kayoua L. 5/5 Verified
I really like this set. Fabric is like butter almost like a second skin. Def a must have
Nicole R. 5/5 Verified
Probably the best workout outfit I’ve ever purchased. Sucks you in but is still super comfortable, fabric quality is amazing!!
Sharon M. 5/5 Verified
The fabric of the shorts & the bodysuit are so soft but so secure! I always have problems with bike shorts rolling but these are perf. Also don’t make me feel soaked during a workout!
Elizabeth R. 4/5 Verified
Im 5’3. 160 lb hourglass shape & a medium fits me perfect! I use it for yoga & for the airport when traveling.
Crystal A. 5/5 Verified
I absolutely adore your workout clothes. I’m A true lululemon girlie but I’m forever switched now. They are amazing fit so well so soft and great to workout in.
Taylor M. 4/5 Verified
O die fits perfect, great quality
Susanna D. 5/5 Verified
Amazing, love everything about the 437 quality and fit 🖤
Jessica P. 5/5 Verified
Super cool
Lisandra G. 5/5 Verified
This is my second onesie because they’re such amazing quality. The fit is very accurate - follow their size guide - and the short length is perfect even for thicker thighs Ike mine).
Androula K. 5/5 Verified
The best onesie I have tried on. Love the quality, the fit, the coverage, everything
Nicole Z. 5/5 Verified
Love my new one piece, it’s super comfortable and stretchy and still looks great after washing. Excited to see how long it holds up
Eniola A. 5/5 Verified
Great quality definitely going to buy more from the brand
Erin M. 5/5 Verified
the onesie was pretty on point and it’s snatchinngggg!!
Silvia G. 5/5 Verified
Love the quality of the pieces
Tiffany H. 5/5 Verified
So cute and flattering! I love it
Caitlin B. 5/5 Verified
Excellent customer service.
Lisa G. 5/5 Verified
😍😍😍😍😍
Yorki A. 5/5 Verified
Comfy and flattering
Samantha L. 5/5 Verified