This is glamour dialed up to eleven—sculptural and curve-hugging, with radiating darts along the hip, a deep-V insert at the neckline (with an oh-so-sexy sheer option), and a dramatic skirt slit. But the clever built-in panty and bust cups ensure everything stays perfectly in place.
Choose between two skirt lengths and two slit heights to match your mood: go for the long train with a high slit for a bit of daring or keep it knee-length with a modest slit for more mystery.Â
Whether you’re channeling old Hollywood at a gala event or making your own star debut in the produce aisle, this gown delivers pure red-carpet magic anywhere.

Sizing Info and Finished Garment Measurements
Not sure which size range to choose? Learn more about our two size ranges here.
Sizes 2-20
| Size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| High Bust | 29 in | 31 in | 33 in | 35 in | 37 in | 39 in | 41 in | 43 in | 45 in | 47 in |
| 73.7 cm | 78.4 cm | 83.8 cm | 88.9 cm | 93.9 cm | 99 cm | 104.1 cm | 109.2 cm | 114.3 cm | 119.4 cm | |
| Bust A cup |
30.5 in | 32.5 in | 34.5 in | 36.5 in | 38.5 in | 40.5 in | 42.5 in | 44.5 in | 46.5 in | 48.5 in |
| 77.5 cm | 82.5 cm | 87.6 cm | 92.7 cm | 97.8 cm | 102.9 cm | 107.9 cm | 113 cm | 118.1 cm | 123.1 cm | |
| Bust B/C cup | 31 in | 33 in | 35 in | 37 in | 39 in | 41 in | 43 in | 45 in | 47 in | 49 in |
| 78.7 cm | 83.8 cm | 88.9 cm | 94 cm | 99 cm | 104.2 cm | 109.2 cm | 114.3 cm | 119.4 cm | 124.4 cm | |
| Bust D/DD cup | 32 in | 34 in | 36 in | 38 in | 40 in | 42 in | 44 in | 46 in | 48 in | 50 in |
| 81.3 cm | 86.4 cm | 91.4 cm | 96.5 cm | 101.6 cm | 106.7 cm | 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | |
| Bust F/G cup |
33 in | 35 in | 37 in | 39 in | 41 in | 43 in | 45 in | 47 in | 49 in | 51 in |
| 83.8 cm | 88.9 cm | 94 cm | 99 cm | 104.2 cm | 109.2 cm | 114.3 cm | 119.4 cm | 124.4 cm | 129.5 cm | |
| Bust H cup |
34 in | 36 in | 38 in | 40 in | 42 in | 44 in | 46 in | 48 in | 50 in | 52 in |
| 86.4 cm | 91.4 cm | 96.5 cm | 101.6 cm | 106.7 cm | 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | 132 cm | |
| Waist | 24 in | 26 in | 28 in | 30 in | 32 in | 34 in | 36 in | 38 in | 40 in | 42 in |
| 61 cm | 66 cm | 71.1 cm | 76.2 cm | 81.3 cm | 86.4 cm | 91.4 cm | 96.5 cm | 101.6 cm | 109.2 cm | |
| Hips | 36 in | 38 in | 40 in | 42 in | 44 in | 46 in | 48 in | 50 in | 52 in | 54 in |
| 91.4 cm | 96.5 cm | 101.6 cm | 106.7 cm | 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | 132 cm | 137.1 cm |
Sizes 18-34
| Size | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
| High Bust | 39.5 in | 41.5 in | 43.5 in | 45.5 in | 47.5 in | 49.5 in | 51.5 in | 53.5 in | 55.5 in |
| 100.3 cm | 105.4 cm | 110.5 cm | 115.6 cm | 120.7 cm | 125.7 cm | 130.8 cm | 135.9 cm | 141 cm | |
| Bust A/B cup | 42.5 in | 44.5 in | 46.5 in | 48.5 in | 50.5 in | 52.5 in | 54.5 in | 56.5 in | 58.5 in |
| 108 cm | 113 cm | 118.1 cm | 123.2 cm | 128.3 cm | 133.4 cm | 138.4 cm | 143.5 cm | 148.6 cm | |
| Bust C cup | 43 in | 45 in | 47 in | 49 in | 51 in | 53 in | 55 in | 57 in | 59 in |
| 109.2 cm | 114.3 cm | 119.4 cm | 124.5 cm | 129.5 cm | 134.6 cm | 139.7 cm | 144.8 cm | 149.9 cm | |
| Bust D/DD cup | 44 in | 46 in | 48 in | 50 in | 52 in | 54 in | 56 in | 58 in | 60 in |
| 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | 132.1 cm | 137.2 cm | 142.2 cm | 147.3 cm | 152.4 cm | |
| Bust F/G cup | 45 in | 47 in | 49 in | 51 in | 53 in | 55 in | 57 in | 59 in | 61 in |
| 114.3 cm | 119.4 cm | 124.5 cm | 129.5 cm | 134.6 cm | 139.7 cm | 144.8 cm | 149.9 cm | 154.9 cm | |
| Bust H cup | 46 in | 48 in | 50 in | 52 in | 54 in | 56 in | 58 in | 60 in | 62 in |
| 116.8 cm | 121.9 cm | 127 cm | 132.1 cm | 137.2 cm | 142.2 cm | 147.3 cm | 152.4 cm | 157.5 cm | |
| Waist | 40 in | 42 in | 44 in | 46 in | 48 in | 50 in | 52 in | 54 in | 56 in |
| 101.6 cm | 106.7 cm | 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | 132.1 cm | 137.2 cm | 142.2 cm | |
| Hips | 48 in | 50 in | 52 in | 54 in | 56 in | 58 in | 60 in | 62 in | 64 in |
| 121.9 cm | 127 cm | 132.1 cm | 137.2 cm | 142.2 cm | 147.3 cm | 152.4 cm | 157.5 cm | 162.6 cm |
The Lorelei Gown is a very fitted knit garment with negative ease. It is designed to hug the body closely in the bodice, sleeve, and panty, and to skim the body in the skirt.
The pattern is designed to fit with between 1 and 11/2 in (2.5 to 3.8 cm) of negative ease in the bust, 1 to 2 in (2.5 to 5.1 cm) of negative ease at the waist, and 0 to 3/4 in (0 to 1.9 cm) of positive ease in the hips.
Recommended Fabrics, Supplies, and Yardage Requirements
Recommended Fabrics
For the outer fabric, we recommend knits with 25–50% stretch in the widthwise grain and zero to very little stretch in the lengthwise grain. This means that if you take 4 inches (10.2 cm) of relaxed fabric in your hands, it should stretch to 5 or 6 inches (12.7 to 15.2 cm). We recommend interlock, ponte, double knits, stretch velvet, stretch sequins, ITY, and wool knits.
For the lining fabric, we recommend knits with a similar stretch percentage as the main fabric: soft interlock, ponte, double knits, and ITY.
For the sheer center front insert panel, we recommend: nylon or polyester power mesh with 50–70% stretch and about 10% spandex. For a nude-illusion look, choose a power mesh similar to your skin tone. Stretch lace or stretch tulle may also be used. NOTE: power mesh is a lightweight fabric and cannot be substituted with power net.
For the power net underlining, we recommend: mediumweight/regular or heavyweight/firm nylon power net with 10–25% spandex.
Wovens and stretch wovens are not recommended for this design.
Notions & Supplies
- Fabric for the dress
- Fabric for the lining
- Power mesh for the center front insert panel (if desired)
- Power net for underlining the bodice and panty
- Thread to match the dress fabric and the power mesh
- 1¼-in-wide (3.2 cm) fusible knit stay tape to stabilize the zipper opening (alternatively, cut a strip from a scrap of fusible knit interfacing yardage)
- 28-in regular nylon zipper (shorten as needed)
- 3 yds (2.7 m) 1/4-inch-wide (6 mm) picot lingerie elastic for the panty
- 1 to 2 yds (0.9 to 1.8 m) of 1-inch-wide (1.3 cm) elastic for the waist stay
- Two pairs of hook-and-eye closures for the waist stay
- A short length of snap tape (or create your own using twill tape and 3 press studs/snaps) for the panty (optional)
- One pair of foam bra cups (optional)
Coming soon!
Additional Resources
The companion sew-along video is exclusive to Sewing Circle members and it is available on Patreon.
The photos show Gertie and Susie wearing matching red sequin Lorelei Gowns. Gertie is wearing a green ponte Lorelei Gown in the shorter skirt length. Stay tuned for future patterns that mix-and-match with this one!
Sewing Tips & Charm Membership Info
Measure yourself around your upper bust (under your armpits and above your breasts, without a bra on), the fullest part of your bust (while wearing your preferred bra), the smallest part of your waist, and the fullest part of your hips (this is likely around the fullest part of your butt). Make sure to hold the measuring tape snugly and parallel to the ground. Compare your body measurements to the size chart.
Find your upper bust measurement on the size chart to find your garment size, and then scan down the cup sizes in that garment size column to find your cup size. For instance, a 37-inch upper bust will make you a size 10, and a 39-inch full bust means you need a B cup. Don’t worry if your waist doesn’t match the size 10 column’s measurement of 32 inches; you can grade the waist in or out as needed. It is most important to choose a size to fit your upper bust and cup size, as the waist is easier to adjust up or down.
Sewing pattern sizes are very different from ready-to-wear garments and bra sizes, so be sure to work with your measurements when choosing a size.
Charm’s 2-20 size range is designed for a body with an hourglass shape. Our 18-34 size range is designed for a body with less waist definition.
Still not sure which size range to choose? Learn more about our two size ranges here.
If you have never used a PDF pattern before, this short video is full of tips: How to Use A PDF Pattern.
It will show you how to choose which PDF format to use, how to print just your size(s), and how to easily assemble and cut out your pattern pieces.
We offer digital patterns in two formats: letter-sized PDFs to print at home and A0 sized PDFs to print at a copy shop. In the US, we highly recommend printing A0 files with The Plotted Pattern. Outside of the US, these printers have been recommended.
When you join us as a Sewing Circle member, you will receive one vintage-inspired sewing pattern a month (with a companion sew-along video) and join the most creative and fun sewing community around!
Specific benefits at the Sewing Circle tier include:
- A vintage-inspired sewing pattern on the first day of every month
- A companion sew-along tutorial video for the pattern
- Access to the entire archive of Sewing Circle patterns and videos!
- A monthly live Crowdcast with Gertie where she shares the history and inspiration behind that month’s pattern
- Access to our community hub on Discord to post your projects, ask for advice, and chat with other members
- One Charm Pattern for free randomly every calendar year (Gertie’s choice)
To view all of the patterns in the Sewing Circle archive, click here and filter for “Pattern Availability = All Sewing Circle Patterns.”
Yes, absolutely! Unlike other monthly sewing memberships, when you are a Charm patron, you get access to the entire archive of sewing patterns available to your tier.
To view all of the membership patterns available at each tier, click here and filter for “Pattern Availability.”
Click here to join the membership on Patreon. There is no long term commitment required, and you can cancel at any time.







































