
Miiyu
Astra Wireless Push-Up Bra
The Astra Wireless Push-Up Bra is a wire-free bra from Miiyu by Simons, an exclusive line designed in Canada. It is made from soft, stretch recycled nylon-blend microfibre and features moulded wireless cups with generous push-up padding, a center-front deep V plunge, and a wide seamless underband. Support is moderate, with adjustable straps and a two-hook back closure; matching panties are sold separately.
- Material
- Recycled nylon-blend microfibre
- Gender
- female
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Bras
Specifications
Wireless push-up bra with moulded cups and moderate support.
Moulded cups with push-up padding, adjustable straps, two-hook closure.
- Material
- Recycled nylon-blend microfibre
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Bras
Additional Attributes
- recycled nylon-blend microfibre fabric
- stretch fabric
- moulded wireless cups
- push-up padding
- adjustable straps
- two-hook closure
- moderate support
Product Insights
The Miiyu Astra Wireless Push-Up Bra offers a dramatic push-up lift comparable to more expensive options like Leonisa, thanks to its molded cups and recycled nylon-blend microfibre that resists moisture and maintains shape with stretch recovery. At $39 CAD, it provides underwire-like support without irritation, with a seamless, invisible silhouette under tight tops. However, buyers must size up by 1–2 bands as it runs small, and may encounter quality issues such as scratchy seams or knotted threads; inspection and proper fit are essential to avoid discomfort from the narrow band or fixed padding.
Verified claims
- Sizing
- Band runs small; buyers recommend sizing up by 1–2 bands.
- Support
- Underwire loyalists confirm comparable support without irritation.
- Value
- At $39 CAD, provides more dramatic push-up lift than Leonisa at $81.
- Quality
- Buyers report occasional quality issues like scratchy back seams or knotted threads at the clasp.
- Seamless visibility
- Virtually invisible under tight or thin tops, with no visible lines.
- Moisture
- Recycled nylon resists moisture and dries quickly, preventing clamminess.
- Stretch recovery
- The 20% spandex provides stretch recovery to maintain the bra's shape over time.
- Lift mechanism
- Generous push-up padding concentrated at the base and sides delivers a dramatic lift, while the bra's overall support level remains moderate.
- Strap adjustment
- The push-up padding is fixed in the cups, so the back-adjustable straps are the primary way to fine-tune lift.
- Care
- Hand-wash cold, no fabric softener, lay flat to dry.
- Padding
- Padding is non-removable, simplifying washing.
- Design
- Two-hook closure boosts durability; moulded cups deliver underwire-like support.
- Fabric
- Recycled nylon-blend microfibre is soft, quick-drying, and retains shape over time.
- Fit
- Narrow elastic band can dig in and leave marks, especially if worn true to size.
- Seamless and wireless
- Wireless design with smooth seams and adjustable straps minimizes chafing and irritation.
- Design origin
- The Astra is designed in Canada as an exclusive Miiyu by Simons house brand.
- Matching panty
- A matching panty is sold separately.
Product record
- Title
- Astra Wireless Push-Up Bra
- Brand
- Miiyu
- Price
- 39 CAD
- Availability
- In stock
Buying Guide
1 comparison · 6 sourcesUses
Underwire-free support for sensitive skin
If underwire tends to dig in or irritate your skin, this wireless bra is a option for all-day wear with support that reviewers describe as comparable to an underwire bra. Its sturdy fabric panels provide lift and shaping without the pressure points of wires, according to aggregated customer reviews. Note that the product listing rates its support level as moderate.[1,2]
An invisible layer under thin or fitted tops
When you're wearing tight or thin fabrics, this bra's low-profile edges and smooth cups are designed to disappear under clothes without visible lines, according to aggregated customer reviews. Reviewers also noted it gives a natural, not-too-aggressive push-up while staying smooth under form-fitting tops.[2]
A natural lift under thin, form-fitting tops
Based on aggregated customer reviews, this wireless push-up bra is used for a natural, not-too-aggressive boost under tight or thin fabrics, where the seamless, smooth cups and low-profile edges stay invisible without showing lines. The deep V plunge is designed for visible cleavage on the model. Some reviewers note the push-up shape may look unnatural on certain body types and that the bra can shift during the day and need adjusting.[2,3]
All-day comfort at your desk or on long days
Reviewers describe this wire-free bra as comfortable through long hours of sitting and long days, with a soft fabric and wireless design that avoids digging and chafing. Note that the band reportedly runs small, and a too-tight fit can dig in and cause bulging, so many reviewers say they sized up.[2]
Product comparison
Compared within this brand.
| Astra Wireless Push-Up Bra: Choose this if you want a wire-free bra with a natural, not-too-aggressive push-up: its moulded wireless cups with generous padding and smooth, seamless construction reportedly stay invisible under thin or tight tops while staying comfortable through long days, and some reviewers say the wireless construction supports like underwire without the irritation. Note that reviewers consistently report the band runs dramatically small, so plan to go at least one band size larger to avoid a too-tight, digging fit. Some customers also received units with scratchy back seams or knotted clasp threads, so it is worth inspecting on arrival.[2] | Aurora Wireless Bra: Choose this if you strictly avoid underwire and want an ultra-light wireless bra reviewers say they barely notice during all-day work or travel. Its smooth, seamless construction and matte finish are reported to disappear under tight t-shirts, and a repeat buyer says it holds its shape and comfort through repeated washes. Note that the band runs small—many customers size up to avoid a tight fit—and some reviewers find the fabric traps heat in hot weather and the straps may lack support for larger busts.[4,5] | Vela Wireless Bra: Choose this if you wear an A or B cup and want wire-free, moderate support for all-day wear: reviewers report it feels barely there, contours without underwire bulk, and stays invisible under white tees and light tops. It's made from a soft recycled nylon blend with a 100% cotton lining, a two-hook back closure, thin adjustable straps, and comes in band sizes 32 to 38 with A through D cups in eleven colors. Note that for C+ cups or mature busts, reviewers often report side spillage and inadequate cup depth, and some find the thin straps uncomfortable over time.[6] |
Image Analysis
3 images- 01

Product
Close-up of a nude-tone wireless bra worn by a seated model showing smooth molded cups with a deep V plunge, thin adjustable straps, and a wide seamless underband; matching high-rise brief visible at lower frame.
- Cup shapeSmooth, contoured molded cups with a pronounced deep V plunge at center front and a rounded outer cup profile.
1 region
x 0.18 · y 0.12 · w 0.64 · h 0.31 (high) - UnderbandWide, seamless underband that continues under the cups and appears to be a single smooth layer without visible stitching on the front face.
1 region
x 0.16 · y 0.35 · w 0.66 · h 0.12 (high) - StrapsThin double straps on each side that attach near the cup outer edge and run over the shoulder; strap material matches bra color and shows a slight sheen.
2 regions
x 0.59 · y 0.06 · w 0.22 · h 0.24 (high); x 0.12 · y 0.08 · w 0.18 · h 0.22 (medium) - Side panelSmooth side panel extending toward the back with no visible hardware or closures in the visible area.
1 region
x 0.71 · y 0.22 · w 0.18 · h 0.20 (medium) - Matching briefHigh-rise matching brief with smooth fabric and narrow waistband visible at lower left of frame, same nude color as bra.
1 region
x 0.06 · y 0.52 · w 0.50 · h 0.40 (high) - Fabric finishFabric appears smooth and slightly satiny with minimal visible texture and nearly seamless joins at cup edges.
Other
Studio portrait crop showing a seated model leaning on a textured ottoman; warm, soft directional lighting from upper left produces gentle shadows and highlights; image is tightly cropped above the model's mouth and below the knees.
- Shot compositionTight three-quarter crop focused on torso and hands; model seated and leaning on a textured cylindrical ottoman at right edge of frame.
1 region
x 0.60 · y 0.58 · w 0.36 · h 0.34 (high) - Background and surfacePlain, warm neutral background and flat floor surface in similar beige tones, minimal visible set elements.
- Model skin detailVisible skin texture and freckles on chest and arms; hands rest across the abdomen with fingers interlaced.
1 region
x 0.22 · y 0.46 · w 0.56 · h 0.34 (high) - LightingSoft, warm directional lighting creating gentle shadows under the bust and arms and subtle highlights on the cup surfaces.
Colors
nude beige· bra exterior#D3AB8Bnude beige· brief exterior#C29D83- Cup shapeSmooth, contoured molded cups with a pronounced deep V plunge at center front and a rounded outer cup profile.
- 02

Product
Front view of a nude-beige wireless molded-cup bra paired with matching high-waist briefs on a model; visible features include a deep V plunge center, smooth seamless cup finish, thin shoulder straps, and high-cut leg openings on the briefs.
- Bra cup shapeTwo seamless molded cups with a smooth, contoured surface and a pronounced deep V plunge at center, producing visible cleavage.
1 region
x 0.14 · y 0.09 · w 0.72 · h 0.25 (high) - Bra bandWide underbust band that continues smoothly from the cups with a clean edge and no visible seams or closures on the front.
1 region
x 0.14 · y 0.28 · w 0.72 · h 0.07 (high) - Shoulder strapsThin, flat shoulder straps matching the bra color, attaching near the cup outer edges and running over the shoulders; strap adjusters are not visible in this crop.
2 regions
x 0.18 · y 0.05 · w 0.12 · h 0.18 (high); x 0.70 · y 0.05 · w 0.10 · h 0.17 (high) - Briefs silhouetteMatching high-waist briefs with a smooth front panel and elasticized top edge; leg openings cut high toward the hip with narrow elastic trim.
1 region
x 0.20 · y 0.48 · w 0.60 · h 0.40 (high) - Material appearanceSmooth, matte fabric with a uniform finish across bra and briefs and minimal visible texture or pattern.
- Seam detailsVery fine seam lines at the briefs' elastic trim and along the bra cup-to-band junction; seams are low-profile and match product color.
1 region
x 0.20 · y 0.55 · w 0.60 · h 0.30 (medium)
Other
Studio shot cropped from mid-thigh to just above the mouth, model posed with one arm behind back, neutral beige backdrop and soft, diffused lighting producing gentle shadows.
- Shot compositionVertical studio crop showing torso and upper thighs of a model; head partially cropped so only lower face is visible.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - BackgroundPlain, neutral light beige background with even tone and no visible props.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Lighting and shadowSoft, diffused lighting from front-left creating gentle shadowing along the model's right side and subtle highlights on the fabric.
- Model poseModel stands with left arm visible at hip and right arm held behind back; slight torso twist accentuates the front view of the bra.
1 region
x 0.00 · y 0.28 · w 0.45 · h 0.60 (high) - Image qualityHigh resolution, sharp focus on garment surfaces and skin; no legible printed text anywhere in the image.
Colors
nude beige· bra cups and band#CCA98Dnude beige· bra straps#CA9D7Bnude beige· briefs front panel and trim#CCA98D- Bra cup shapeTwo seamless molded cups with a smooth, contoured surface and a pronounced deep V plunge at center, producing visible cleavage.
- 03

Product
Rear view of a nude-tone wireless bra worn by a model, showing the back band, adjustable straps, and hook-and-eye closure; fabric appears smooth and matte.
- Back band shapeCurved low-back band that follows the model's back contour with a gentle U-shape at the center back.
1 region
x 0.15 · y 0.32 · w 0.70 · h 0.25 (high) - Closure typeTwo-column hook-and-eye closure with two vertical rows of hooks mounted on a fabric tab at center back.
1 region
x 0.45 · y 0.38 · w 0.10 · h 0.06 (high) - Strap constructionThin adjustable shoulder straps attached to the band with small metal rings and having metal slider adjusters.
2 regions
x 0.18 · y 0.12 · w 0.15 · h 0.35 (high); x 0.67 · y 0.12 · w 0.12 · h 0.35 (high) - Fabric finishSmooth, uniform matte fabric with minimal visible texture across the band and straps.
- Stitching and seamNarrow top edge seam on the band and clean finished seam where band meets side panels; no decorative stitching visible.
1 region
x 0.15 · y 0.32 · w 0.70 · h 0.12 (medium) - Hardware detail leftSmall rectangular metal slider on left strap.
1 region
x 0.28 · y 0.28 · w 0.06 · h 0.06 (high) - Hardware detail rightSmall rectangular metal slider on right strap.
1 region
x 0.66 · y 0.28 · w 0.05 · h 0.06 (high)
Other
Studio rear-angle product shot on a standing model against a plain pale background with soft, even lighting and minimal shadows.
- Model presenceFemale model shown from the rear wearing the product and matching high-waist underwear; hair falls down the back partly covering the upper band.
1 region
x 0.24 · y 0.00 · w 0.52 · h 0.45 (high) - Background and lightingEven soft studio lighting on a neutral pale beige background producing minimal harsh shadows.
- Framing and cropVertical crop showing the torso from upper shoulders to hips with the arms partially visible and the product centered.
Colors
nude beige· bra fabric (band and straps)#CA9D7Bnude beige (matching)· matching underwear fabric#C29D83warm metal· metal hardware (sliders and hooks)#BA8C6A- Back band shapeCurved low-back band that follows the model's back contour with a gentle U-shape at the center back.
Variants
21 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4007569 | Astra Wireless Push-Up Bra - Black - 32-A | CA$39.00 | Yes |
| 4007571 | Astra Wireless Push-Up Bra - Black - 32-C | CA$39.00 | Yes |
| 4007572 | Astra Wireless Push-Up Bra - Black - 32-D | CA$39.00 | Yes |
| 4007573 | Astra Wireless Push-Up Bra - Black - 34-A | CA$39.00 | Yes |
| 4007574 | Astra Wireless Push-Up Bra - Black - 34-B | CA$39.00 | Yes |
| 4007575 | Astra Wireless Push-Up Bra - Black - 34-C | CA$39.00 | Yes |
| 4007576 | Astra Wireless Push-Up Bra - Black - 34-D | CA$39.00 | Yes |
| 4007577 | Astra Wireless Push-Up Bra - Black - 36-A | CA$39.00 | Yes |
| 4007578 | Astra Wireless Push-Up Bra - Black - 36-B | CA$39.00 | Yes |
| 4007580 | Astra Wireless Push-Up Bra - Black - 36-D | CA$39.00 | Yes |
| 4170474 | Astra Wireless Push-Up Bra - Black - 38-A | CA$39.00 | Yes |
| 4007581 | Astra Wireless Push-Up Bra - Black - 38-B | CA$39.00 | Yes |
| 4170478 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 32-D | CA$39.00 | Yes |
| 4170479 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 34-A | CA$39.00 | Yes |
| 4170480 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 34-B | CA$39.00 | Yes |
| 4170481 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 34-C | CA$39.00 | Yes |
| 4170484 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 36-B | CA$39.00 | Yes |
| 4170485 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 36-C | CA$39.00 | Yes |
| 4170487 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 38-A | CA$39.00 | Yes |
| 4170488 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 38-B | CA$39.00 | Yes |
| 4170490 | Astra Wireless Push-Up Bra - Ivory/cream Beige - 38-D | CA$39.00 | Yes |
Documents & Data
Customer Reviews
34 total34 reviews · out of 5
Comfortable, right amount of push-up
This bra is very comfortable and provides a nice amount of push up.
La taille ne convenait pas
Retourné en magasin
Wonderful
Nice push up bra comfortable I liked the color
J'adore
Super confortable
Bien fait et confortable
Bien fait et confortable
Astra
Fait très bien
Great Bra
I have been struggling to find a bra that fits and has enough support and coverage, but I finally found it! Ended up purchasing 2 more in different colours.
Très confortable
Parfait
Très jolie , pigeonnant ,
Très jolie , pigeonnant , confortable
Very comfortable
Gives me a great shape and looks good under clothing
Bon achat
J'ai hésite puisqu'habituellement je préfère avec armatures, mais auccun regret. Bon soutien, et bonne qualité. Seul "reproche", mais c'est très personnel, c'est qu'il n'est pas disponible en 38A. J'ai donc dû prendre 36A, mais heureusement, il reste confortable.
Dessous féminin
Très confortable
Confortable
J’adore, très confortable et flateuse
Not for me
I really love Simons bras but this one disappoints. The fitting was a lil tighter although I ordered my exact size plus the shape was quite weird too. Maybe it can work for others but it’s not for me, I returned. (For reference it was a blind buy)
Confortable
Très confo Fit parfait
Très confortable
Habituée des modèles avec armatures qui me donnent des allergies . Celui-ci même sans armature j’ai été surprise du soutien , légers coussinets juste ce qu’il faut pour une apparence naturelle . Coupe seyante . J’ai adoré pour le sport , se lave bien . Invisible sous les vêtements , J’en achèterai 2 autres
Mauvaise couture
Les coutures du dos étaient coupantes. J'achète ce produit depuis plusieurs années, mais cette fois-ci, le produit n'était pas bien conçu.
Doux et confortable
Ceci est le 2e modèle que j’achète car trop confortable . J’ai toujours porté des modèles à arceaux . Ce modèle supporte autant et en plus ne blesse pas la peau comme certain modèles à arceaux . Cette couleur est très belle . Le mauve uni est aussi joli
Fait bien
Elle fait bien, pas d'armature, mais maintient une belle forme et reste en place. Par contre la mienne semble avoir un défaut, a la hauteur de l'attache, les fils sont plein de noeuds, donc frottent constamment sur la peau. J'ai dû les recouvrir
Great
I recommend it's my second bra from this design
Fits small
Seemed to fit small for my usual 34C after measuring my body and using formula from the sizing chart. I’m 131 lbs and 5’5”. The straps were the deal breaker, though. Rough on the edges and dug in very bad as they were too thin. Sad because the design of the band and cups seemed seamless and nice. Straps and cup size being too small ruined for me. Returned.
Astra wireless push-up bra
Not true to size. Poor quality round loops for the straps. Give it away instead of paying return shipping.
Bon soutien gorge pour petite poitrine
Cousinet discret et sans armature
Moyennement satisfaite
L’élastique est trop étroit au contour et durant la journée il fait mal. Si je le mets plus serré, il coupe et fait un bourrelet.
Le pigeonnant pas fait véritablement
Le pigeonnant pas fait véritablement pour ma poitrine,on dirait que le contour est plus petit que les autres modèles!
Good quality but bad fit
I wanted to love this bra because it looked similar to the ones I purchased several years ago at a store that are no longer available. The fit was very on the small side. I measure 31 inches below my bustling and normally take a C32. This bra was SO tight. I bought an extender but now the straps fit too far apart. Definitely a miss.
Parfait
Très confortable
Astra
Parfait pour moi
Déçue
Ne tient pas vraiment en place.
Ultra comfortable
Ultra comfortable
Small
Fits small, band is tight
Best Bra
I have such a hard time finding bras, but this one is perfect! Nice and soft with not too much of a push up. Bought one in every colour.
Confortable et beau
Soutien-gorge qui semble bien soutenir malgré l'absence darmatures. Confortable et juste pour la grandeur.
I like this bra, I
I like this bra, I initially bought it but had to return because although the cup size fits, the other measurements are much too small and tight. So for instance, if you are a size 32B, to fit you must purchase 36B.