Katie Em Undies Adjustable Seamless Wireless Bra

Sale price $19.99 CAD Regular price $49.99 Save $30.00 (60% off)

🎁 Shop early, gift happy. Exchanges and returns welcome, with no deadline. (We’d just love them back by Feb 28, 2027.) Details

Best for:Everyday wearSensitive skin
Colour: BLACK
Size

Free pickup at High Street (Downtown Edmonton)

In stock in store. Usually ready in 2 hours.

Only 3 in stock

Complete the Set

Ultimate Seamless Mid Rise Brief Underwear
Katie Em Undies Ultimate Seamless Wireless Bra
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Edmonton & St. Albert boutiques
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The Full Story

The seamless wireless bra that actually fits properly — because the straps adjust. Most seamless bras are a single pullover piece with no strap customisation, which means the fit is whatever the fit is. The Katie Em Adjustable Seamless Wireless Bra adds fully adjustable straps to the seamless, wire-free format, so you can set the support and placement where you actually want it rather than accepting whatever the bra decides. Wire-free, invisible under clothes, subtle smoothing through the back and sides. The everyday bra for women who have given up on underwires but haven't given up on fit.

In Black and Peachy Nude. SM through XL.


About Katie Em Undies

Katie Em Undies is a Canadian brand making seamless underwear and bras designed for real daily wear. The adjustable wireless bra is their answer to the gap between the comfort of a pullover seamless bra and the fit of an adjustable one.


The Details

  • Brand: Katie Em Undies | Canadian brand
  • Style: Adjustable Seamless Wireless Bra
  • Support: Wire-free — no underwire pressure points
  • Straps: Fully adjustable — customise support and placement
  • Construction: Seamless — invisible under fitted tops, tailored shirts, and delicate knits
  • Features: Subtle back and side smoothing · Lightweight · Stretchy fabric adapts to shape
  • Colours: Black · Peachy Nude
  • Sizing: SM · MD · LG · XL
  • Available at: Cloud Nine Pajamas — three Edmonton locations and online, shipping across Canada

Size Guide

Size CA Size Bust
SM 4–6 34–36"
MD 8–10 37–39"
LG 12–14 40–42"
XL 16 43–45"
True to size. The seamless fabric stretches to fit — if between sizes, size up for more comfort through the band.

Good to Know

How is this different from a Coobie or pullover seamless bra?
The adjustable straps. Pullover seamless bras like Coobie are one-size-flexible with no strap adjustment, which means the fit is fixed regardless of your proportions. This bra has the same seamless, wire-free format but with fully adjustable straps — so if you have narrow shoulders, longer torso, or just prefer more or less lift, you can actually set it. Same ease of wear, better fit control.

Does wire-free mean less support?
For everyday wear at a C cup and below, seamless wireless bras provide enough support without the pressure points underwires create. The adjustable straps compensate for the lack of underwire by letting you customise the lift. For larger cup sizes looking for structured support, an underwire bra will always provide more.

Is it truly invisible under clothes?
Yes — seamless construction with no seams at the cup or band means nothing shows through fitted tops, fine knits, or light-coloured shirts. The Peachy Nude is the closest to skin-tone invisibility; Black works under darker colours and thicker fabrics.

Can I wear this as a sleep bra?
Yes — wire-free and seamless makes it one of the more comfortable options for sleeping in. Many women who prefer some support overnight find the adjustable wireless format more comfortable than a sports bra or nothing at all.

Style # SR139648

Frequently asked questions

Some questions and answers are automatically generated.

Is this bra truly seamless under clothes?
Yes. The seamless construction with no seams at the cup or band means it won't show through fitted tops, fine knits, or light-coloured shirts. Peachy Nude is closest to skin-tone invisibility; Black works well under darker colours and thicker fabrics.
How comfortable is this for sleeping?
Very comfortable for sleep. The wire-free and seamless design makes it one of the more comfortable sleep bra options, and many customers appreciate having some gentle support overnight without the pressure of an underwire or sports bra.
How does adjustable straps improve the fit?
Unlike pullover seamless bras with fixed fit, the adjustable straps let you customise the support and placement to suit your proportions—whether you have narrow shoulders, a longer torso, or prefer more or less lift. This combines the comfort of seamless with better fit control.
Does the fabric hold its shape after washing?
Yes. Customers report the bras wash well and maintain their fit and comfort through regular laundering, with the stretchy seamless fabric continuing to adapt to your shape.
Does it provide enough support without underwire?
For everyday wear at a C cup and below, the seamless wireless format provides sufficient support, especially with the adjustable straps customising the lift. For larger cup sizes needing structured support, an underwire bra will always provide more.
How does this compare to Coobie bras?
Both are seamless and wire-free with the same ease of wear. The key difference: this bra has fully adjustable straps, while Coobie and similar pullover seamless bras have fixed fit with no strap adjustment, so you can't customise the support and placement.
  • 5 stars: 16 (84%)
  • 4 stars: 1 (5%)
  • 3 stars: 1 (5%)
  • 2 stars: 1 (5%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
A
Anonymous
BLACK / SM
Fit: True to Size
Wonderful shop!!!!

The nighties I purchased are soft very comfortable. The seamless bras wash well and fit so comfortably that I’m quite unaware that I am even wearing one.

H
Hariette M. (Alberta, Canada)
PEACHY NUDE / LG
Feel: Need more support
Fabric: Love the fabric, very comfortable
Bras

The bras are nice & comfortable but I need more support

Thank you for sharing your thoughts, Hariette! We’re glad you love the fabric and comfort, and we appreciate your note about support — it’s helpful for us and other shoppers to know.

A
Anonymous (Alberta, Canada)
PLUM WINE / MD
Fit: True to Size
Feel: Supportive yet flexible
Fabric: Breathable and the right level of stretch
Ultimate Wireless Bras are Heaven!

I originally bought one of these bras to wear at home thinking it would not be something I could wear in public. That soon changed as I realized how comfortable AND supportive they are with excellent coverage! The last time I put on a "real" bra, I could not keep it on for even 5 minutes as it was so uncomfortable! Katie Em bras are awesome!

Kimberley, this is exactly why we love Katie Em bras too — total comfort without compromising support! We're so glad they've become your everyday go-to (and that “real” bras are officially on notice!). Thanks for the kind words!

L
Linda D. (Alberta, Canada)
PEACHY NUDE / SM

Love them and Shawna is always so friendly and helpful 💜

Aw, thanks Linda! We’re so glad you’re loving your Katie Em bras — and we totally agree, Shawna is a gem Comfort and kindness are kind of our thing!

S
Susan M. (Alberta, Canada)
NUDE / XL

Ultimate Wireless Bra Seamless

T
Tanya L. (Alberta, Canada)
Beautiful

It is very comfortable and it feels you are not wearing a bra. I would recommend to a friend and other people who wants a relaxing fit. Great fabric to deal with moisture wicking . More colors to choose from .

C
Carrie L. (Alberta, Canada)
NUDE / MD
Amazing store and products.

My PJ place for sure! I have been in a couple of the stores and the girls are all so friendly and helpful with finding the right size and product. Once you know your size it is easy to order on line as everything then fits true to size. I recently lost weight so was unsure of my size. Two big thumbs up and I love the bamboo moisture wicking at my age!

M
Moreen M. (Ontario, Canada)
PEACHY NUDE / LG
Most comfortable bra ever

This is possibly the comfiest bra - like I'm not even wearing it - also looks so stylish.

S
Sally K. (Manitoba, Canada)
NORDIC BLUE / SM
Excellent!

Wonderful underwear and bras, so comfortable and perfect fit!
Excellent customer service.
Will definitely order online again.

J
Jennifer B. (Nova Scotia, Canada)
NUDE / XL
Sleepwear

Fantastic. Very comfortable.

K
Kimberley v.T. (Alberta, Canada)
NUDE / LG
Comfy and invisible!

I LOVE the Katie M bra's! They're my absolute favorite. Very comfortable, fits perfectly, is invisible under clothes. The colours stay very vibrant, even after many washes. Very happy with this product! I have it in 4 colours now :-)

Once a Katie Em bra lover, always a Katie Em bra lover! We've got more colours heading this way soon! Thank you so much for the love - as the designers it's our favourite thing to hear!

j
jane p. (Ontario, Canada)
BLACK / XL
Disappointed

The bra fits but the straps are too thin and they dig in or they fall off my shoulders. Very disappointed.

T
Theresa M. (Alberta, Canada)
BLACK / SM
Comfortable but…

I love how comfortable it is when it’s on and you can’t even feel it. However once you’ve worn and washed it I find it starts riding up the front when you move around and that drives me crazy. If it didn’t ride up it’d be the best bra I’ve ever had.

G
Gidget D. (Alberta, Canada)
NUDE / XL
The best ever!

This bra is the best & at this stage in life comfort is on top of list & these bras win it hands down!

L
L.H. (British Columbia, Canada)
BLACK / MD
Katie em wireless bra

My decision to purchase this bra online was pending due to uncertainty of fit.
When it became available during a bogo sale event I couldnt refuse. I purchased 1 nude shade and 1 black.
I was looking for minimal detailing which I would be comfortable wearing during heat waves during the summer months.
This bra offers exactly that. It is lightweight, soft material, no irritation from itchy tags, clasps, or shoulder strap adjustments. There is no sweating beneath bustline/ribcage which I sometimes experience.

The foam cups I removed after 2 days of wearing as I didnt like the look of 2 unnatural circulars. They reminded me of breastfeeding pads so I removed them. I think a teardrop shape would have been better. The bra is totally fine without the cups, they can be easily removed through a small opening slit. The polyamide material acts like a compression against my chest, so it does flatten. Be mindful of this if you are less endowed. I find the appearance less flattering than that of a regular push up. Perhaps this may be well suited for a fitness class or other activity. Overall I am very pleased with this product. I will continue to wear this purchase in comfort.

Hi Laura,

I am so glad that you are enjoying the bras! Thank you for the great feedback! I hope it kept you cool in the warm weather!

Stay Cozy,
Kate
Owner

L
L.H.
Katie em wireless bra

My decision to purchase this bra online was pending due to uncertainty of fit.
When it became available during a bogo sale event I couldnt refuse. I purchased 1 nude shade and 1 black.
I was looking for minimal detailing which I would be comfortable wearing during heat waves during the summer months.
This bra offers exactly that. It is lightweight, soft material, no irritation from itchy tags, clasps, or shoulder strap adjustments. There is no sweating beneath bustline/ribcage which I sometimes experience.

The foam cups I removed after 2 days of wearing as I didnt like the look of 2 unnatural circulars. They reminded me of breastfeeding pads so I removed them. I think a teardrop shape would have been better. The bra is totally fine without the cups, they can be easily removed through a small opening slit. The polyamide material acts like a compression against my chest, so it does flatten. Be mindful of this if you are less endowed. I find the appearance less flattering than that of a regular push up. Perhaps this may be well suited for a fitness class or other activity. Overall I am very pleased with this product. I will continue to wear this purchase in comfort.

B
Brittany A. (Alberta, Canada)
Best Bra Ever!

This is one of the most comfortable bras that I own! The soft fabric feels so nice on, and washes beautifully! It is clear that it was designed to fit and flatter everyone. I like that you can easily remove the inner cups or keep them in as they do provide really nice shape. A must have in your closet!

B
Brittany
Best Bra Ever!

This is one of the most comfortable bras that I own! The soft fabric feels so nice on, and washes beautifully! It is clear that it was designed to fit and flatter everyone. I like that you can easily remove the inner cups or keep them in as they do provide really nice shape. A must have in your closet!

C
Christine A. (Alberta, Canada)
BLACK / XL
Wireless seamless bra

Does not stay where it’s supposed to, crawls up. Not comfy because you have to constantly pull it down.