Miiyu
Astra Wireless Push-Up Bra
The Astra Wireless Push-Up Bra is a wireless push-up bra from the Miiyu by Simons exclusive line designed in Canada. It features moulded cups with generous push-up padding, a deep V plunge, adjustable straps at the back, and a two-hook closure. Made from soft, stretch recycled nylon-blend microfibre, it offers moderate support; a matching panty is sold separately.
- Material
- Recycled nylon-blend microfibre
- Gender
- female
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Bras
Color
Size
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
- Achieves a moderate push-up with a more dramatic lift than comparable under‑$40 wireless bras.
- Invisible silhouette
- Seamless, smooth cups stay invisible under tight or thin tops.
- Strap adjustment
- Adjustable straps are the only way to customize lift; padding is fixed.
- Care
- Hand-wash cold, no fabric softener, lay flat to dry.
- Padding
- Padding is non-removable, simplifying washing.
- Initial inspection
- Inspect for rough seams before first wear for comfort.
- Design
- Two-hook closure boosts durability; moulded cups deliver underwire-like support.
- Finishing
- Some buyers report finishing defects like knotted threads at the clasp.
- 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.
Product record
- Title
- Astra Wireless Push-Up Bra
- Brand
- Miiyu
- Price
- 39 CAD
- Availability
- In stock
Deep Research
Fit and sizing consistency
- The product image depicts a 34C model, giving an in‑situ sizing reference that makes it easier to gauge how the generous push‑up padding and wireless cup will sit relative to your own band and cup size — a 34C wearer can directly anticipate the same coverage and lift, while other sizes can mentally scale from that known anchor.
Two‑hook closure on larger sizes
- Bra fitting experts at Grail confirm that the number of hooks on a closure does not directly affect lift or stability — support is primarily provided by the band's tension and the way it wraps the ribcage. On the Astra's wireless design, the two‑hook fastening's role is simply to keep the band snug, making it functionally equivalent to a multi‑hook back as long as the band itself fits correctly.
- Grail Bra Specialists note that single‑hook bras are significantly less durable; the Astra’s two‑hook closure sidesteps that failure point, giving it a hardware lifespan comparable to everyday bras — a practical edge for a style intended as a daily basic.
- Bra designers scale closure hardware with cup volume — Grail observes that hook count frequently increases as sizes go up to maintain proportionality. The Astra’s two‑hook back aligns with its moderate‑support category and the 32A–38D cup range, where a two‑hook closure is the expected, fully engineered choice without overbuilding.
Wireless push-up support and shaping
- A two-hook back closure anchors the band securely around the ribcage, which is the foundation for any wireless bra’s support—by minimizing band movement and keeping the cups positioned correctly, it helps maintain the push-up shaping through daily wear.
- The Astra’s cups are shaped with thick padding concentrated at the base and sides, which pushes breast tissue up and toward the center to create noticeable cleavage without underwire—a lift method that relies on the cup’s internal architecture rather than a rigid frame.
- The ‘moderate’ support label positions this bra for everyday circumstances—it delivers a natural-looking lift and a degree of shaping under clothes that distinguishes it from both unstructured bralettes and high-impact sports bras, making it an underwire-free bridge to a put-together look.
- In a wireless design, the straps don’t just hold the bra up—they actively contribute to lift by allowing you to adjust tension to distribute breast weight across the shoulders, which is especially important when the cups alone provide the push-up effect so that proper strap fit delivers the full silhouette.
- The fabric’s stretch-and-recovery property keeps the moulded cups from collapsing over time, while its soft texture prevents the irritation that stiffer foams can cause at the underwire line—since there’s no wire, comfort is immediate but long-term shape retention makes this bra a reliable daily driver.
How it stacks up against similar bras
- At 39 CAD, the Miiyu Astra costs roughly 40% less than the regular-priced Aerie Sunnie Wireless Push Up Bra (64.95 CAD) while sharing the same core build of wireless push-up cups, adjustable straps, and a back hook closure, so the savings can cover the matching panty sold separately.
- Because the Astra's push-up padding is permanently integrated into the moulded cups, wearers never have to re-insert or straighten shift-prone removable pads, a maintenance headache common with the similarly priced MUJI wireless push-up bra that relies on removable inserts.
- As a house brand created exclusively for Simons and designed in Canada, Miiyu operates without the licensing fees and multi-tier distribution costs that inflate the prices of international intimates labels, letting the Astra reach 39 CAD while still using recycled materials and moulded push-up architecture.
- The Astra's 'generous push-up padding' provides a more dramatic lift than the 'light push-up padding' in the Leonisa Wireless Push Up Bra at 81 CAD, meaning the 39 CAD Astra delivers higher push-up intensity for less than half the price.
- The Astra's recycled nylon-blend microfibre fabric yields a smooth, drapey hand that minimizes lines under clingy tops, whereas the MUJI bra at 39.90 CAD uses organic cotton — a different sustainability story and a softer, more matte finish that may be less slick against outerwear.
Fabric feel and all‑day breathability
- Because recycled nylon is a polyamide like all nylon, it resists absorbing moisture and dries rapidly — the bra won't retain perspiration the way cotton lingerie does, so it stays light and comfortable even during warmer days or light activity.
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.
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.
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
Astra
Fait très bien
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.
Dessous féminin
Très confortable
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
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.
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.
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.
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.
Very comfortable
Gives me a great shape and looks good under clothing
Astra wireless push-up bra
Not true to size. Poor quality round loops for the straps. Give it away instead of paying return shipping.
Confortable
J’adore, très confortable et flateuse
Très confortable
Parfait
Confortable
Très confo Fit parfait
Très jolie , pigeonnant ,
Très jolie , pigeonnant , confortable
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!
Bon soutien gorge pour petite poitrine
Cousinet discret et sans armature
Bien fait et confortable
Bien fait et confortable
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)
Déçue
Ne tient pas vraiment en place.
La taille ne convenait pas
Retourné en magasin
Wonderful
Nice push up bra comfortable I liked the color
Astra
Parfait pour moi
Parfait
Très confortable
J'adore
Super confortable
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.
Ultra comfortable
Ultra comfortable
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.
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
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.
Great
I recommend it's my second bra from this design
Small
Fits small, band is tight
Q&A
2 answered- What are the recommended washing instructions to maintain the recycled microfibre's shape and elasticity?
- To maintain the shape and elasticity of the recycled microfibre, we recommend hand washing in cold water with a mild detergent, then laying flat to dry. Avoid wringing, bleach, and fabric softener.
- Is the bra seam-free and smooth enough to be invisible under tight or thin tops?
- Yes, the bra is designed to be smooth under clothing. The soft, stretch recycled microfibre and moulded cups create a seamless look, and the wireless construction eliminates underwire lines. It should be virtually invisible under tight or thin tops.