Be Flexible Seamless Onesie • Black Catsuit Pilates & Studio Workouts
Be Flexible Seamless Onesie • Black Catsuit Pilates & Studio Workouts - Black / XS is backordered and will ship as soon as it is back in stock.
Size & Fit Advice
Size & Fit Advice
At a Glance
At a Glance
Materials & Construction
Materials & Construction
Care Information
Care Information
POPFLEX recommends using your body measurements rather than relying on your everyday clothing size. Compare your bust, waist and hip measurements with the chart below and always check the individual product's fit notes, as different silhouettes can feel more sculpting, relaxed or adjustable.
POPFLEX Women's Size Chart
Use your bust, waist and hip measurements to find your recommended POPFLEX size.
| Measurement | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Bust | 79–84 cm 31–33" | 84–89 cm 33–35" | 89–94 cm 35–37" | 94–102 cm 37–40" | 102–109 cm 40–43" |
| Waist | 61–66 cm 24–26" | 66–71 cm 26–28" | 71–79 cm 28–31" | 79–86 cm 31–34" | 86–96 cm 34–38" |
| Hips | 86–91 cm 34–36" | 91–97 cm 36–38" | 97–102 cm 38–40" | 102–109 cm 40–43" | 109–122 cm 43–47" |
POPFLEX designs can vary from highly sculpting leggings and fitted tops to adjustable-waist skorts and more relaxed layers. If your measurements fall across two sizes, prioritise the measurement most relevant to the garment — waist and hips for bottoms, and bust for fitted tops or bras — then check the product-specific fit advice.
How to Measure for POPFLEX
Measure over underwear or close-fitting clothing using a flexible tape measure. Stand naturally and keep the tape comfortably against the body without pulling it tight.

Bust
Tops & BrasMeasure around the fullest part of the bust, passing the tape underneath the arms and keeping it straight and level around the body.
Keep the tape comfortably close without compressing the bust.
Waist
Bottoms & SkortsMeasure around your natural waist, usually the narrowest part of the torso. Keep the tape level and comfortably against the body without pulling it tight.
Hips
Measure around the fullest part of the hips and seat while standing naturally. Keep the tape level all the way around the body.
Height
Stand straight without shoes, with feet flat on the floor, and measure from the floor to the top of the head.
POPFLEX does not use height in its core XS–XL body-size chart, but it can be useful when comparing garment lengths and longer silhouettes.
Inside Leg
Measure from the top of the inner thigh down the inside of the leg to the ankle while standing straight.
This is a useful secondary measurement for leggings, trousers and full-length styles, but it is not part of POPFLEX's standard XS–XL body-size chart.
POPFLEX uses the same core bust, waist and hip measurements across much of its clothing range, but the feel of the garment can vary significantly depending on the design. Sculpting leggings and fitted tops may feel closer to the body, while adjustable-waist skorts, trousers and relaxed layers can offer more flexibility. Use this chart as your starting point and always follow any product-specific Dance World fit advice where provided.
Be Flexible Seamless Onesie • Black Catsuit Pilates & Studio Workouts - Black / XS is backordered and will ship as soon as it is back in stock.
Best For: Pilates • Barre • Contemporary Dance • Commercial Dance • Conditioning • Rehearsals • Studio-to-Street
Description
Description
One Beautifully Unbroken Dancer Line
Clean, sculpted and made to move, the POPFLEX Be Flexible Onesie creates one uninterrupted line from its sweetheart neckline to its full-length legs.
The polished Black finish feels naturally at home in dance, while POPFLEX’s seamless stretch, light bust support and carefully placed contouring make it equally suited to Pilates and studio conditioning.
POPFLEX Be Flexible Onesie – Design & Support
The sweetheart neckline is balanced by an ultra-low scoop back, creating a distinctly dancer-led silhouette. The shoulder straps are fixed rather than adjustable, keeping the upper line clean while making torso length an important part of the fit.
Ribbed panels create additional definition through the waist, while a heart-shaped back seam follows and shapes the seat. At the front, the absence of a centre seam creates a smoother line, supported by a moisture-absorbing cotton gusset.
An internal shelf bra provides light support, with space to add your own removable pads if preferred. Pads are not supplied with the catsuit.
The POPFLEX Why
One-Piece Studio Line
The fitted full-length shape creates a clean, uninterrupted silhouette without a waistband or separate layers.
No Front Seam
A smooth front construction helps reduce unwanted definition through the centre of the catsuit.
Light Support Built In
An internal shelf bra provides gentle support and can accommodate your own removable pads.
Purposeful Contouring
Ribbed waist panels and a heart-shaped back seam add definition while preserving complete stretch.
POPFLEX Be Flexible Onesie Wear Profile
The Dance World Wear Profile highlights the fit, feel and practical characteristics of each POPFLEX design. This profile reflects the Black Be Flexible Seamless Onesie specifically.
What POPFLEX Customers Notice
The stretch makes the fit surprisingly flexible. Choose the smaller suitable Flex size for more sculpting or the larger option for a softer, more comfortable hold.
Torso and bust proportions matter. The fixed straps work beautifully when the catsuit matches your vertical body length, but a longer torso or fuller bust may pull the sweetheart neckline lower and reduce security through forward folds and larger movement.
Made for Movement You Can See
The close seamless fit allows teachers to see alignment clearly through Pilates, barre, conditioning and contemporary movement. With no separate waistband or loose fabric, the catsuit remains smooth through floor work, extensions and changes of level.
The shelf bra is intended for light support. Dancers with fuller busts or those planning jumps and higher-impact choreography should test the neckline through a forward fold and raised-arm movement before class.
Product Highlight
✦ Contemporary Line Favourite
This is where POPFLEX and dance meet most naturally. The Be Flexible Onesie combines the clarity of a contemporary unitard with the comfort and confidence details of modern activewear, all in one exceptionally elegant Black silhouette.
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About POPFLEX Brand
About POPFLEX Brand
About POPFLEX - Premium Activewear & Studio Essentials
POPFLEX is a premium activewear brand renowned for combining innovative design with exceptional comfort and performance. Created for movement, every collection features thoughtfully engineered apparel designed to support workouts, dance training, Pilates, yoga and everyday active living, without compromising on style.
Known for its flattering silhouettes, functional details and high-quality performance fabrics, POPFLEX creates activewear that moves effortlessly with the body while offering lasting comfort and confidence. From leggings and sports bras to jackets, dresses and studio essentials, every piece is designed to help you look and feel your best, whether you're training in the studio, working out or enjoying life on the move.
Delivery & Returns
Delivery & Returns
All orders are sent via GLS. A signature will be required upon receipt of your order. If there is no-one available to accept the package a calling card will be left behind for you so you can re-arrange delivery.
Free EU Standard Delivery on orders over 99€
Please visit our delivery page for further delivery information and our returns page for returns information.
Customer service can be contacted via email : orders@danceworld.ie
By phone - Ireland: 01 497 6129, UK and Rest of World: 00 353 1 497 6129





