Symmes Strapless Bra
New
Defy the laws of gravity with the Symmes Strapless Bra sewing pattern!
The Symmes is built for serious support for big boobs in sizes 28C-54J, with vertical underwires, 4-pieces cups, and angled boning throughout to keep everything comfortably in place. Say goodbye to slipping, digging, and discomfort—and hello to a whole new world of wardrobe possibilities!
Created by curvy sewing experts and bra-making professionals, you can trust the Symmes to fit and feel fantastic as you dance the night away.
This Cashmerette pattern includes:
- 14 band sizes (28-54) and 9 cup sizes (C-J) for 126 separate sizes
- Step-by-step instructions for choosing your ideal bra size
- A beautifully illustrated and detailed instruction booklet to guide you no matter your sewing level
- Free video sewalong to help you sew the Symmes from start to finish
- Bra making resources and our bra fitting guide available on our blog
Take the hassle out of sourcing bra supplies with all-in-one Symmes kits available from bra shops around the world!
Want to see how this pattern will look on you? Sketch your plans on a body outline croquis that's custom made to your measurements with MyBodyModel. Learn more »
---
SEWING LEVEL
Advanced
SIZING
Band sizes 28 to 54 and cup sizes C, D, DD, E, F, G, H, I, and J; includes full bust 31"-65" (79-165 cm) and underbust 28"-55" (72-142 cm).
Note: Cashmerette bra sizing is calculated in a different way to standard Cashmerette garment sizing. Your Cashmerette bra size may also be different from your ready-to-wear bra size. Use the bra size guide (also included in the Symmes pattern instructions) to determine your ideal starting size.
RECOMMENDED FABRIC
- Main fabric: non-stretch woven fabric such cotton or rayon, or bra fabric as duoplex. Fabric with a maximum stretch of 15% in one direction is acceptable.
- Lining: non-stretch bra lining fabric such as nylon tricot or duoplex. NOTE: lining the cups is optional, but the lining on the center front band is required.
- Bra foam: cut & sew foam, 1⁄8” – 1⁄4” (3-6 mm) thick
- Back band: mid-weight stretch fabric such as nylon/spandex power mesh with 25–50% stretch in one direction and at least 10% in the opposite direction. For a more supportive bra, use a heavy-weight power mesh.
ELASTIC & NOTIONS
- Band elastic: ¾” (19 mm) wide plush-back strap elastic
- Bias tape: 1 ¼ yard (1.2 m) of 1 ¼” (3.2 cm) wide bias tape
- Hook & eye closure: continuous hook & eye tape with at least 3 columns of eyes. The number of hook and eyes are based on the wire size and range from 5 to 11 rows.
- Boning: ¼" (6 mm) wide plastic boning with covering
- Underwire channeling: plush backed underwire channeling
- Underwires: 1 pair of vertical underwires. NOTE: this pattern has been designed for use with vertical underwires such as these from Porcelynne.
- Universal needle, thread
- Optional: stretch needle, lingerie bow for center front, hand needle to attach bow, Wonder Tape
TOOLS
Tailor’s ham or rolled up towel, standard presser foot, zipper foot, press cloth, non-sewing scissors for cutting boning, lighter for melting the ends of plastic boning (optional)
---
PDF pattern information
New to PDF sewing patterns? See our complete guide here.
The PDF comes in separate file sizes for each band/cup size, so you only need to print your size. You'll receive files to print at home or at a copy shop. Files are delivered as a .zip file which can be downloaded on a computer, but not on a mobile device. For more on PDFs, see the FAQs.
Total ZIP file size: 46 MB
Instructions: 52 pages
Print at home file (for each size): 3-14 pages
A0 file (for each size): 1 page
---
Model details
Jenny (pink & blue print) is wearing a size 38I. Her measurements are 48" (122 cm) full bust and 38" (96.5 cm) underbust.
Brit (floral print) is wearing a size 30I. Her measurements are 40" (101.5 cm) full bust and 30.5" (77.5 cm) underbust.
Rachel (blue & purple print, purple solid) is wearing a size 38I with a matching Gilmore Skirt (a Cashmerette Club pattern) with a hacked scalloped bound hem. Her measurements are 48" (122 cm) full bust and 38" (96.5 cm) underbust.
Symmes Strapless Bra
Why it’s special:
C-J cups
Incredible support & shaping for big boobs
More like this: Lingerie / Special occasion
Defy the laws of gravity with the Symmes Strapless Bra sewing pattern!
The Symmes is built for serious support for big boobs in sizes 28C-54J, with vertical underwires, 4-pieces cups, and angled boning throughout to keep everything comfortably in place. Say goodbye to slipping, digging, and discomfort—and hello to a whole new world of wardrobe possibilities!
Created by curvy sewing experts and bra-making professionals, you can trust the Symmes to fit and feel fantastic as you dance the night away.
This Cashmerette pattern includes:
- 14 band sizes (28-54) and 9 cup sizes (C-J) for 126 separate sizes
- Step-by-step instructions for choosing your ideal bra size
- A beautifully illustrated and detailed instruction booklet to guide you no matter your sewing level
- Free video sewalong to help you sew the Symmes from start to finish
- Bra making resources and our bra fitting guide available on our blog
Take the hassle out of sourcing bra supplies with all-in-one Symmes kits available from bra shops around the world!
Want to see how this pattern will look on you? Sketch your plans on a body outline croquis that's custom made to your measurements with MyBodyModel. Learn more »
---
SEWING LEVEL
Advanced
SIZING
Band sizes 28 to 54 and cup sizes C, D, DD, E, F, G, H, I, and J; includes full bust 31"-65" (79-165 cm) and underbust 28"-55" (72-142 cm).
Note: Cashmerette bra sizing is calculated in a different way to standard Cashmerette garment sizing. Your Cashmerette bra size may also be different from your ready-to-wear bra size. Use the bra size guide (also included in the Symmes pattern instructions) to determine your ideal starting size.
RECOMMENDED FABRIC
- Main fabric: non-stretch woven fabric such cotton or rayon, or bra fabric as duoplex. Fabric with a maximum stretch of 15% in one direction is acceptable.
- Lining: non-stretch bra lining fabric such as nylon tricot or duoplex. NOTE: lining the cups is optional, but the lining on the center front band is required.
- Bra foam: cut & sew foam, 1⁄8” – 1⁄4” (3-6 mm) thick
- Back band: mid-weight stretch fabric such as nylon/spandex power mesh with 25–50% stretch in one direction and at least 10% in the opposite direction. For a more supportive bra, use a heavy-weight power mesh.
ELASTIC & NOTIONS
- Band elastic: ¾” (19 mm) wide plush-back strap elastic
- Bias tape: 1 ¼ yard (1.2 m) of 1 ¼” (3.2 cm) wide bias tape
- Hook & eye closure: continuous hook & eye tape with at least 3 columns of eyes. The number of hook and eyes are based on the wire size and range from 5 to 11 rows.
- Boning: ¼" (6 mm) wide plastic boning with covering
- Underwire channeling: plush backed underwire channeling
- Underwires: 1 pair of vertical underwires. NOTE: this pattern has been designed for use with vertical underwires such as these from Porcelynne.
- Universal needle, thread
- Optional: stretch needle, lingerie bow for center front, hand needle to attach bow, Wonder Tape
TOOLS
Tailor’s ham or rolled up towel, standard presser foot, zipper foot, press cloth, non-sewing scissors for cutting boning, lighter for melting the ends of plastic boning (optional)
---
PDF pattern information
New to PDF sewing patterns? See our complete guide here.
The PDF comes in separate file sizes for each band/cup size, so you only need to print your size. You'll receive files to print at home or at a copy shop. Files are delivered as a .zip file which can be downloaded on a computer, but not on a mobile device. For more on PDFs, see the FAQs.
Total ZIP file size: 46 MB
Instructions: 52 pages
Print at home file (for each size): 3-14 pages
A0 file (for each size): 1 page
---
Model details
Jenny (pink & blue print) is wearing a size 38I. Her measurements are 48" (122 cm) full bust and 38" (96.5 cm) underbust.
Brit (floral print) is wearing a size 30I. Her measurements are 40" (101.5 cm) full bust and 30.5" (77.5 cm) underbust.
Rachel (blue & purple print, purple solid) is wearing a size 38I with a matching Gilmore Skirt (a Cashmerette Club pattern) with a hacked scalloped bound hem. Her measurements are 48" (122 cm) full bust and 38" (96.5 cm) underbust.
Get Your Size, Zero Guesswork
Size Calculator
Enter your measurements:
Units
Your Cashmerette Size Results
Our patterns are designed for curves in cup sizes C-H. If your cup size is smaller proportionally to your shoulders than our C/D cup size, you will need to do a small bust adjustment. To calculate how much width you need to remove from your pattern piece, divide the total SBA amount needed by two (as the pattern piece represents half the garment). How to do an SBA >
Our patterns are designed for curves in cup sizes C-H. If your cup size is larger proportionally to your shoulders than our G/H cup size, you will need to do a full bust adjustment. To calculate how much width you need to add to your pattern piece, divide the total FBA amount needed by two (as the pattern piece represents half the garment). How to do an FBA >
Your measurements put you in more than one size, so you will need to grade between sizes to achieve your personalized fit. How to grade between sizes >
We need to ask you a few more questions to get your starting size.
Please contact us with your measurements.
We need to ask you a few more questions to get your starting size.
Please contact us with your measurements.
We need to ask you a few more questions to get your starting size.
Please contact us with your measurements.
What To Do Next
Frequently Asked Questions
Best Seller
Best Seller
5 Patterns in 1
