You Should Be Working Out in a Onesie
I tried four different workout onesies so you don’t have to.
For a long time, I assumed one-pieces were just influencer-core outfits meant for Pilates selfies, not actual sweat sessions. But after testing everything from an Amazon bargain to a high-end Vuori staple, I am convinced: a good onesie can replace half your workout wardrobe.
Each one came with its own strengths and price point, but they all shared one thing in common: once you try working out in a single, seamless piece, it is hard to go back to the whole leggings-and-top situation.
The Affordable Find: Amazon’s Everyday One-Piece
Let’s start at the entry level. I found a sleek black one on Amazon for around $35, and honestly, it overdelivered. The fit was snug without suffocating, the fabric was thick enough to feel secure, and it held up through a 45-minute sculpt class. It didn’t have the bells and whistles (no built-in bra, limited colors), but as a low-commitment test drive, it was worth every penny.
Amazon
Seamless Full-Length Bodysuit
$35
The Soft Girl Staple: Vuori AllTheFeels Onesie
If you are already a fan of Vuori’s buttery-soft fabric, this one will not disappoint. It feels like wearing loungewear to the gym, which is probably why I ended up wearing it everywhere but the gym too. The material moves with you, and it looks cute enough for post-Pilates errands.
It is not the most compressive, so I would save it for low-impact workouts, yoga, or travel days. Still, it is the one I reach for when I want to feel both comfortable and put together.
Vuori
AllTheFeels Onesie
$118
The Mid-Range MVP: Girlfriend Collective Moon Bike Unitard
At around $88, this one hit the sweet spot of performance and price. The recycled compression fabric actually sculpts while still breathing, which is rare for workout wear. I wore it for boxing one morning and was impressed by how little adjusting I had to do. The straps stayed in place, and the fabric wicked away sweat better than my usual set.
It is the perfect blend of functional and flattering, and I appreciate that the brand is sustainable too.
Girlfriend Collective
Moon Bike Unitard
$98
The Luxe Pick: Bandit Running One Piece
If you are ready to splurge, this is the one. The Bandit piece is structured, sleek, and designed for high-intensity movement. It has real built-in support, deep pockets, and the kind of quality that makes you feel like a professional athlete (even if you are just walking to Pilates).
At over $120, it is not cheap, but it is clearly made to last. The compression is sculpting but comfortable, and it looks as good after five washes as it did on day one.
Bandit Running
Running One Piece
$128
The Real Takeaway
You do not need four onesies. You just need the right one.
The price differences come down to fit, fabric, and longevity. The budget-friendly versions are perfect for testing the trend, while the mid-range and luxury options give you that long-term quality and sculpted feel that makes you actually want to work out.
Once you find your match, the convenience is unmatched. No more digging for matching tops, tugging at waistbands, or worrying about layering. Just zip, stretch, and go.
All in all, the onesie is not just a fitness trend. It is an energy shift. It makes you feel streamlined, confident, and just a little more pulled together, even if the rest of your life is a bit of a mess.
