Katie Em Undies Ultimate Seamless Wireless Bra
Pickup available at High Street (Downtown Edmonton)
Usually ready in 2 hours
Complete the Set
The Full Story
The pullover version — no adjustable straps, no clasps, nothing to fiddle with. The Katie Em Ultimate Seamless Wireless Bra slips on and stays there. Wide-band design through the underbust for smoothing and support without an underwire, seamless construction that disappears under clothes, and an 85% Polyester / 15% Elastane fabric that stretches to fit rather than requiring a precise band-and-cup measurement. The model is a 36E cup wearing a Large — the stretch and wide-band format make this workable for a wider range of cup sizes than a traditional bra sizing system would suggest.
In four colours with full stock: Nordic Blue, Plum Wine, Black, and Nude. SM through XL. If you want the same wireless seamless format with fully adjustable straps, the Katie Em Adjustable Seamless Wireless Bra is also available at Cloud Nine.
About Katie Em Undies
Katie Em Undies is a Canadian brand making seamless underwear and bras for real daily wear. The Ultimate Wireless Bra is their core pullover style — the one for women who want to put a bra on and stop thinking about it.
The Details
- Brand: Katie Em Undies | Canadian brand
- Style: Ultimate Seamless Wireless Bra — pullover
- Support: Wire-free — wide underbust band for support and back smoothing
- Straps: Fixed — pullover style, no adjusters or clasps
- Construction: Seamless — invisible under fitted tops and fine knits
- Fabric: 85% Polyester · 15% Elastane
- Model sizing: Model is a 36E cup wearing size Large
- Colours (in stock): Black · Nude · Nordic Blue · Plum Wine
- Sizing: SM · MD · LG · XL
- Fit note: Fabric relaxes slightly with wear — size down if between sizes
- Available at: Cloud Nine Pajamas — three Edmonton locations and Canada-wide shipping online
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" |
Good to Know
Pullover vs. the Adjustable Wireless Bra — which one?
Same wire-free, seamless concept, different fit mechanism. This one pulls over the head with no straps to adjust — simpler, faster, nothing to fiddle with. The Adjustable Wireless Bra has fully adjustable straps for a more customised placement and lift. If you like the ease of a pullover and the wide-band support is enough for you, this one. If you want strap control, the Adjustable. Both the same price at Cloud Nine.
Does this work for larger cup sizes?
The stretch fabric and wide underbust band make this more accommodating than a standard sized bra — the model wearing a Large is a 36E cup, which is fuller than most seamless bra brands account for. The wide band provides horizontal support across the chest that compensates for the lack of a structured cup. For a D cup and above, this format works best for lower-impact activity and everyday wear rather than high-intensity movement.
Is it actually invisible under clothes?
Yes — seamless construction with no seam lines at the cup edge means no texture shows through fitted tops or fine knits. Nude is the closest to skin-tone invisibility for lighter skin tones; Black works under dark fabrics; Nordic Blue and Plum Wine are statement colours that work under looser or opaque layers.
Can I sleep in it?
Yes — the wire-free pullover format with no clasps or adjusters makes it comfortable for overnight wear. Many women who want light support while sleeping find this the most comfortable option in the Katie Em range.
Final Sale Policy
Sale items are priced to move and, because of that, we're not able to offer returns or exchanges on anything marked down. We know that's not always convenient — if you're unsure on sizing, our size chart and team (in-store or via chat) are happy to help before you order. Full-price items still enjoy our standard return policy.
Style # SR127925
Katie Em size guide
Seamless, second-skin comfort in sizes Small to Extra Large. From a fellow Canadian small business, these pieces are soft, smooth under everything, and so comfortable you'll forget you're wearing them (the best compliment a bra can get).
Our fit tip: Katie Em is made with 85% polyester and 15% elastane, so it gently relaxes and moulds to you with wear. If you're between sizes, always size down. It'll feel snug for the first few wears, then settle into a fit that stays supportive and smooth for the long haul.
Bras
Find your usual band size along the top and your cup size down the side. Where they meet is your Katie Em size.
- Small
- Medium
- Large
- Extra Large
| Cup | 30 | 32 | 34 | 36 | 38 | 40–42 |
|---|---|---|---|---|---|---|
| A | S | S | S | M | L | XL |
| B | S | S | S | M | L | XL |
| C | S | S | M | M | L | XL |
| D | S | M | M | M | L | XL |
| E | S | M | M | L | L | XL |
| F | S | L | L | L | XL | XL |
Swipe sideways to see the full chart on your phone.
Underwear
Match your usual clothing size to find your fit.
| Katie Em size | Your usual size |
|---|---|
| Small | 4–6 |
| Medium | 8–10 |
| Large | 12–14 |
| Extra Large | 16–18 |
Still not sure?
We're real people who talk about fit all day long, and we love it. Pop into any of our three Edmonton-area shops or send us a note, and we'll help you find your perfect size.