Stylist Picks: The Best Pilates All-in-Ones for 2026

Pilates all-in-ones are the ultimate fusion of comfort and style, designed to move seamlessly from your Pilates session to coffee dates without missing a beat. As someone who's spent years styling women for both active and everyday wear, I can tell you that 2026's offerings are genuinely game-changing—think buttery-soft fabrics, sculpting fits, and designs that actually flatter rather than just function.

The beauty of a proper Pilates all-in-one lies in its ability to provide support where you need it whilst maintaining that second-skin feel that won't restrict your movement during those challenging teaser holds. This year's standout pieces feature innovative fabric technology, thoughtful design details like built-in bras and strategic seaming, and colours that go far beyond basic black.

What Makes a Perfect Pilates All-in-One?

Having fitted hundreds of women over the years, I've learnt that the perfect Pilates piece needs four key elements: moisture-wicking properties, four-way stretch, a supportive built-in bra (at least medium support), and a fit that doesn't dig in or create unwanted lines. The fabric should feel substantial enough to provide coverage during inversions, yet lightweight enough for heated sessions.

Look for pieces with flatlock seams to prevent chafing, and pay attention to the gusset construction—trust me, this detail matters more than you might think. The best all-in-ones also feature strategic mesh panels for breathability and compression zones that enhance your silhouette without feeling restrictive.

High Street Heroes

Lululemon continues to dominate the premium activewear space with their buttery-soft Align fabric technology, offering pieces that feel like a second skin whilst providing excellent support. Their all-in-ones feature innovative construction that eliminates camel toe and creates a incredibly flattering silhouette.

Sweaty Betty has revolutionised accessible luxury activewear with their Power collection, featuring sweat-wicking technology and sculpting compression that genuinely works. Their all-in-ones come in fantastic colours and prints that transition beautifully from studio to street.

COS offers minimalist designs with exceptional fabric quality at a more accessible price point. Their clean lines and neutral colour palette make these pieces perfect for the understated elegance lover who values quality construction.

Whistles brings their signature sophisticated aesthetic to activewear, creating pieces that feel elevated enough for post-workout brunches. Their attention to detail in fit and finish is remarkable for the price point.

Anthropologie surprises with their Free People movement line, offering unique prints and details you won't find elsewhere. These pieces are perfect for the woman who wants to express her personality through her activewear choices.

Zara has stepped up their activewear game significantly, offering on-trend pieces that mirror expensive designer aesthetics at fraction of the cost. Their ribbed and seamless collections are particularly impressive.

Mango delivers European sophistication in their activewear line, with careful attention to cut and colour that feels more premium than the price suggests. Their pieces consistently fit true to size and wash beautifully.

Premium Picks

Reiss has entered the activewear arena with pieces that embody their signature polished aesthetic. These all-in-ones work equally well for Pilates and sophisticated casual wear, featuring luxurious fabrications and impeccable tailoring.

ME+EM offers thoughtfully designed pieces that consider real women's bodies, with strategic ruching and panelling that enhances rather than hides. Their colour palette is sophisticated and their quality exceptional.

Luxury Investment Pieces

Max Mara brings Italian luxury to activewear with pieces that feel more like high-fashion than workout gear. The construction quality and fabric hand are exceptional, making these true investment pieces.

For those seeking unique, independent brands, Girlfriend Collective leads the sustainable activewear movement, creating all-in-ones from recycled materials without compromising on fit or function. Their size inclusive approach and transparent manufacturing make them a standout choice.

Year of Ours offers fashion-forward designs that blur the line between activewear and ready-to-wear. Their pieces feature unique cut-outs, interesting textures, and colours that feel fresh and modern—perfect for the woman who wants to stand out from the typical gym crowd.

Styling Your Pilates All-in-One Beyond the Studio

The versatility of a great all-in-one extends far beyond your Pilates session. Layer a cropped blazer over your piece for instant coffee-date chic, or add a silk scarf and white trainers for weekend errands that require a bit more polish. A denim jacket and ankle boots transform your activewear into a casual evening look that's both comfortable and stylish.

Never Guess Your Size Again with Tellar

Finding the perfect fit in activewear can be particularly challenging, as sizing varies dramatically between brands. This is where Tellar.co.uk becomes invaluable—the UK's leading sizing tool that matches your body exactly to over 1500 brands instantly.

How Tellar Works:

Measure once using your bust, waist, hip measurements, or your existing brand size
Use their Store Size Lookup tool to get your precise size in any brand—COS, Reiss, Lululemon, and more
Always free, no downloads needed—works perfectly in your browser

As someone who's seen countless sizing disasters (particularly with activewear where fit is crucial), I cannot recommend this tool highly enough. There's nothing worse than ordering what you think is your size, only to find it doesn't fit properly when you're mid-downward dog!

Tellar Fashion Hub

Beyond sizing, Tellar offers a comprehensive fashion hub—a library packed with free posts from top stylists. It's honest, unbiased, independent, and always free. Whether you need style advice, top picks, or brand recommendations, their expert content covers every fashion query you might have.

For more comprehensive guidance, check out these essential reads:

Final Thoughts

Investing in quality Pilates all-in-ones is about more than just having the right gear—it's about feeling confident and supported in whatever you're doing. Whether you're flowing through a challenging sequence or running weekend errands, the right piece should make you feel effortlessly put-together.

Remember, the most important factor is how the piece makes you feel. If you feel confident and comfortable, that's worth far more than any brand name or price tag. Use Tellar's sizing tool to ensure you get the perfect fit, and don't be afraid to try something new—2026's offerings are truly exceptional.