Katie Em Undies Ultimate High Rise Seamless Brief
Pickup available at High Street (Downtown Edmonton)
Usually ready in 24 hours
Seamless, high-rise, and genuinely stays put. The Katie Em Ultimate High Rise Brief sits at the natural waist with a subtle smoothing effect through the midsection — no rolling down, no bunching, no adjusting halfway through the day. The seamless construction means no visible panty lines under fitted trousers, a bodycon dress, or anything else that would expose a standard brief. In four colours: Black, Nude, Nordic Blue, and Plum Purple. $19.99 and final sale, which means it's the kind of underwear you stock up on when you find one that works.
About Katie Em Undies
Katie Em Undies makes seamless underwear designed for real daily wear — the kind that performs consistently rather than requiring management throughout the day. The high-rise brief is their core style.
The Details
- Brand: Katie Em Undies
- Style: Ultimate High Rise Brief — Seamless
- Rise: High rise — sits at the natural waist
- Construction: Seamless — no visible panty lines
- Features: Subtle midsection smoothing · No rolling or bunching · Stays in place all day
- Colours: Black · Nude · Nordic Blue · Plum Purple
- Sizing: SM · MD · LG · XL
- Fit note: Fabric relaxes slightly with wear — size down if between sizes for the best long-term fit
- Sale policy: All underwear is FINAL SALE — no returns or exchanges
- Available at: Cloud Nine Pajamas — three Edmonton locations and worldwide shipping online
Size Guide
| Size | CA Size | Hip |
|---|---|---|
| SM | 4–6 | 35–37" |
| MD | 8–10 | 38–40" |
| LG | 12–14 | 41–43" |
| XL | 16 | 44–46" |
Good to Know
Does the high rise actually stay up?
Yes — the seamless waistband doesn't roll or fold down the way a woven waistband can. The high rise sits at the natural waist and holds its position through a full day of movement without needing readjustment.
Why size down if between sizes?
The seamless fabric has stretch and recovery, but it relaxes slightly after the first few wears. Sizing down means it fits correctly long-term rather than feeling loose after a few washes. If you're solidly within a size range, take your usual size.
Why final sale?
Standard practice for underwear — hygiene reasons mean we can't accept returns or exchanges on any underwear items regardless of condition. Make sure to check the size guide carefully before ordering. If you're unsure between sizes, size down.
Good gift?
If you know someone's size, yes — the Plum Purple and Nordic Blue are genuinely beautiful colours that arrive looking like a deliberate gift rather than a practical item. A multipack across colours is a strong option for anyone who's been looking for a seamless brief that actually works.
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.