Rich dark brown women's activewear bodysuit with an elegant curved abdominal panel, contoured hip stitching and smooth stretch fabric designed for Pilates and studio workouts.

Chocolate brown one-piece women's gym jumpsuit featuring a fitted bust, supportive underbust stitching and seamless-looking full-length leggings in a kneeling studio pose.

Muted forest green women's one-piece gym jumpsuit photographed from a rear-side angle, highlighting the fitted bodice, contoured waist panels and full-length leggings.

Deep espresso brown women's full-length Pilates unitard with delicate spaghetti straps, a scoop neckline and sculpting curved contour seams across the waist and hips.

black women's activewear bodysuit with an elegant curved abdominal panel, contoured hip stitching and smooth stretch fabric designed for Pilates and studio workouts.

black one-piece women's gym jumpsuit featuring a fitted bust, supportive underbust stitching and seamless-looking full-length leggings in a kneeling studio pose.

Midnight navy blue women's Pilates unitard featuring thin shoulder straps, a scoop neckline and distinctive curved contour stitching across the waist and hips.

Deep navy women's full-length gym jumpsuit with a fitted bodice, supportive underbust seam and sculpting abdominal panel, photographed in a standing studio pose.

Dark midnight blue women's one-piece workout outfit with smooth stretch fabric, curved waist detailing and fitted full-length leggings for Pilates, yoga and gym training.

Deep plum purple women's Pilates unitard photographed from a side angle, highlighting the fitted silhouette, delicate shoulder straps and sculpting curved waist seams.

Dark aubergine women's full-length workout jumpsuit with a scoop neckline, defined underbust stitching and flattering contour panels extending around the hips.

Rich muted plum women's one-piece activewear with a fitted waist, smooth stretch leggings and detailed side stitching, styled in an elegant standing studio pose.

Dark sage green women's full-length Pilates unitard featuring delicate spaghetti straps, a scoop neckline and sculpting curved seams across the waist and hips.

Deep grey-green women's activewear unitard with supportive underbust stitching, curved side panels and smooth stretch fabric, styled in an elegant standing studio pose.

SEREN Arc-Line Crossback Unitard

$246.00

Color:jade green

Size:

SIZE GUIDE

ERAFITT

Size & Fit

Designed to Move With You

01 / Universal Size Guide

Body Measurements

Use your bust, waist and hip measurements as the primary guide when selecting your ERAFITT size.

Size	Bust CM	Bust IN	Waist CM	Waist IN	Hips CM	Hips IN
XS	75–80	29.5–31.5	60–65	23.6–25.6	80–85	31.5–33.5
S	80–85	31.5–33.5	65–70	25.6–27.6	85–90	33.5–35.4
M	85–90	33.5–35.4	70–75	27.6–29.5	90–95	35.4–37.4
L	90–96	35.4–37.8	75–80	29.5–31.5	95–100	37.4–39.4
XL	96–105	37.8–41.3	80–85	31.5–33.5	100–105	39.4–41.3

02 / Tops & Sports Bras

Upper Body Fit

For sports bras, crop tops, fitted tops and tanks, use your bust measurement as the primary sizing reference.

Size	Bust CM	Bust IN
XS	75–80	29.5–31.5
S	80–85	31.5–33.5
M	85–90	33.5–35.4
L	90–96	35.4–37.8
XL	96–105	37.8–41.3

Sports bras & fitted tops: choose your usual size for a sculpted fit. If you prefer less compression or fall between sizes, consider sizing up.

03 / Bottoms

Leggings, Shorts & Skirts

For leggings, shorts, tennis skirts and other fitted bottoms, use your waist and hip measurements to determine your size.

Size	Waist CM	Waist IN	Hips CM	Hips IN
XS	60–65	23.6–25.6	80–85	31.5–33.5
S	65–70	25.6–27.6	85–90	33.5–35.4
M	70–75	27.6–29.5	90–95	35.4–37.4
L	75–80	29.5–31.5	95–100	37.4–39.4
XL	80–85	31.5–33.5	100–105	39.4–41.3

Leggings & compression bottoms: select your usual size for a close, sculpted fit. For a softer or more relaxed fit, consider the next size up.

04 / International Conversion

Size Conversion

Use the international conversion chart below as a general reference.

ERAFITT	AUS	US	UK	EU
XS	6	2	6	34
S	8	4	8	36
M	10	6	10	38
L	12	8	12	40
XL	14	10	14	42

Fit Note

ERAFITT styles are designed with varying levels of stretch, support and compression. Fit may vary slightly depending on fabric and construction. If your measurements fall between two sizes, choose your usual size for a more sculpted fit or size up for a more relaxed feel.

M L XL S

Variant

Description

SEREN Arc-Line Crossback Unitard

Sculpted in curves. Striking from behind. SEREN is an elongated active unitard distinguished by sweeping contour seams, delicate shoulder straps and an architectural crossback that transforms a minimal silhouette into something unmistakably refined.

Fine straps frame the softly curved neckline while tonal seamwork sweeps around the waist in an arc-inspired formation. The placement creates visual definition through the centre of the body before continuing into a sleek, uninterrupted full-length leg.

Turn around and SEREN reveals its second character. Slender straps cross over a dramatically open back, balancing feminine delicacy with a clean athletic profile. Designed for Pilates, yoga, barre and studio movement, it is the kind of one-piece that looks considered from every angle.

Signature Details

Sweeping arc-shaped contour seams
Fine camisole-style shoulder straps
Soft curved front neckline
Defined waist construction
Deep open-back profile
Delicate crossover back straps
Streamlined full-length leg

The Arc Line

The defining detail is subtle rather than loud. Curved tonal seams sweep across the waist and torso, creating an elegant architectural frame that visually shapes the centre of the silhouette without relying on heavy colour blocking.

The Crossback

Slender straps intersect across the exposed back, creating delicate geometric lines against the skin. The open construction gives SEREN an unexpectedly feminine finish while keeping the overall design sleek and minimal.

Fabric & Feel

Smooth and flexible with comfortable stretch designed to follow the body through controlled movement. The close-fitting construction creates a streamlined feel through the torso, hips and legs while the open back keeps the silhouette visually light.

Designed For

Pilates · Yoga · Barre · Studio Training · Elevated Athleisure

Fit

Designed for a close, body-skimming fit from bust to ankle. Please refer to the individual garment measurements and size guide before selecting your size.

Follow the curve. Own the line. ERAFITT.

Model

Model is wearing size S.

Fit is true to size with a close, sculpted silhouette.

For a more relaxed fit, consider sizing up.

Please refer to the Size Guide for general sizing information.

RETURNS

ERAFITT

Returns & Refunds

Important Information

We want your ERAFITT experience to feel simple and clear. Please review the return and refund conditions below before placing your order.

Eligible Returns

Returns and refund requests are only accepted where an item is faulty, damaged or different from the item ordered, subject to assessment and applicable consumer law.

We do not accept returns or refunds for change of mind, incorrect size selection or personal preference, except where required by law.

Return Conditions

Contact ERAFITT before returning any item.
Provide your order number and a short description of the issue.
Clear photos may be requested for review.
Items should be unworn and returned with original tags where reasonably possible.
Approved returns must be posted to our Australian returns address.

Postage & Refunds

Return postage is generally the customer’s responsibility, unless applicable consumer law requires otherwise.

Once an approved return has been received and assessed, the appropriate remedy will be provided, which may include a replacement, repair or refund.

Nothing in this policy excludes or limits your rights under the Australian Consumer Law or other applicable mandatory consumer protection laws.

Delivery

ERAFITT

Shipping & Delivery

From Our Store to Your Door

Your ERAFITT order is prepared with care and delivered directly to your chosen destination.

Order Processing

Orders are generally processed within 1–5 business days before dispatch.

During launches, promotional periods or periods of high demand, processing may take slightly longer.

Delivery

Delivery timeframes vary depending on your location, the product ordered, courier service and destination.

Once your order has been dispatched, tracking information will be sent to the email address provided at checkout where tracking is available.

Tracked Where Available Dispatch Updates Sent by Email

International Orders

ERAFITT ships to supported international destinations. Available delivery options will be displayed at checkout.

International customers may be responsible for customs duties, taxes or import charges imposed by the destination country.

Delivery Address

Please ensure your delivery address is complete and accurate before placing your order.

ERAFITT cannot guarantee that address changes can be made once an order has entered processing or dispatch.

Delivery Delays

Delivery may occasionally be affected by circumstances outside our control, including customs processing, courier delays, weather events, public holidays or other disruptions.

Delivery and processing timeframes are estimates and are not guaranteed. Please contact ERAFITT customer care if you require assistance with your order.

SEREN Arc-Line Crossback Unitard

$246.00

WORLDWIDE DELIVERY

Tracked delivery to selected destinations worldwide.

EASY RETURNS

Simple returns within our returns period.

HERE TO HELP

Support when you need it, before or after your order.

SECURE CHECKOUT

Protected checkout with trusted payment methods.