Boylston Bra PDF Sewing Pattern
Size GuideSizing Information
Bras
There is no single measurement method to determine bra size what bra size will work for every body. The only reliable way to determine bra size is to try on finished bras made from that pattern. Given the bra sizing challenge, we recommend starting by making your ready-to-wear size.
If you do not have a ready-to-wear size or at a loss for what size to start with, we offer the below sizing guidelines for our bra sewing patterns. If you have any sizing questions, feel free to contact us!
SIZING GUIDELINES
| DIFFERENCE | CUP SIZE |
| 1" | A |
| 2" | B |
| 3" | C |
| 4" | D |
| 5" | DD or E |
| 6" | DDD or F |
| 7" | G |
| 8" | H |
| 9" | I |
| 10" | J |
MEASURING
- When taking measurements, be sure to stand up straight and exhale fully.
- Measure body circumference directly under the bust with the tape measure parallel to floor. Round the measurement to the nearest inch, rounding down if you are at the ½” mark.This is the band size.
- Measure body circumference at the fullest part of the bust while wearing a bra that is supportive yet made of a relatively thin fabric. Again, keep the tape measure parallel to the floor.
- Derive cup size by subtracting the band size from the full bust measurement. Consult the chart below to find cup size. For example, if the full bust is 36″ and the band size is 34″, the difference is 2″. Based on the cup size chart above, this difference corresponds to a B cup. If you are in between sizes, use the larger size.
SISTER SIZES
Sister sizes are bra sizes that have the same bra cup volume and underwire size. The difference between sister sizes is the size of the band. For example, the sizes 30D, 32C, 34B and 36A all have the same cup volume and use the same underwire. The difference between those sizes is the band. This blog post has instructions for how to modify the band to reach the sister sizes on this table.
| WIRE | BRA SIZE | |||||||||
| 28 | 30A | |||||||||
| 30 | 30B | 32A | ||||||||
| 32 | 30C | 32B | 34A | |||||||
| 34 | 30D | 32C | 34B | 36A | ||||||
| 36 | 30DD | 32D | 34C | 36B | 38A | |||||
| 38 | 30DDD | 32DD | 34D | 36C | 38B | 40A | ||||
| 40 | 30G | 32DDD | 34DD | 36D | 38C | 40B | 42A | |||
| 42 | 30H | 32G | 34DDD | 36DD | 38D | 40C | 42B | 44A | ||
| 44 | 30I | 32H | 34G | 36DDD | 38DD | 40D | 42C | 44B | 46A | |
| 46 | 30J | 32I | 34H | 36G | 38DDD | 40DD | 42D | 44C | 46B | 48A |
| 48 | 32J | 34I | 36H | 38G | 40DDD | 42DD | 44D | 46C | 48B | |
| 50 | 34J | 36I | 38H | 40G | 42DDD | 44DD | 46D | 48C | ||
| 52 | 36J | 38I | 40H | 42G | 44DDD | 46DD | 48D | |||
| 54 | 38J | 40I | 42H | 44G | 46DDD | 48DD | ||||
| 56 | 40J | 42I | 44H | 46G | 48DDD | |||||
Note: Only the Marlborough, Boylston and Devonshire bras cover the entire range. The remainder of the bra patterns extend from A to DD only.
INTERNATIONAL CUP SIZE CONVERSION
| USA | UK | France, Spain, Belgium | Italy, Czech Republic | EU, Japan | Australia, New Zealand |
| AA | AA | AA | --- | AA | --- |
| A | A | A | A | A | A |
| B | B | B | B | B | B |
| C | C | C | C | C | C |
| D | D | D | D | D | D |
| DD or E | DD | E | DD | E | DD |
| DDD or F | E | F | E | F | E |
| DDDD or G | F | G | F | G | F |
| DDDDD or H | FF | H | FF | H | FF |
| I | G | I | G | I | G |
| J | GG | J | GG | J | GG |
INTERNATIONAL BAND SIZE CONVERSION
| USA | UK | France, Spain, Belgium | Italy, Czech Republic | EU, Japan | Australia, New Zealand |
| 30 | 30 | 80 | 0 | 65 | 8 |
| 32 | 32 | 85 | 1 | 70 | 10 |
| 34 | 34 | 90 | 2 | 75 | 12 |
| 36 | 36 | 95 | 3 | 80 | 14 |
| 38 | 38 | 100 | 4 | 85 | 16 |
| 40 | 40 | 105 | 5 | 90 | 18 |
| 42 | 42 | 110 | 6 | 95 | 20 |
| 44 | 44 | 115 | 7 | 100 | 22 |
| 46 | 46 | 120 | 8 | 105 | 24 |
| 48 | 48 | 125 | 9 | 110 | 26 |
| 50 | 50 | 130 | 10 | 115 | 28 |
Underwear
Underwear patterns are based on a waist and hip measurement.
SIZING GUIDELINES
| SIZE | WAIST (inches) | HIP (inches) |
| XS | 24 -25 | 34.5 - 35.5 |
| S | 26 - 27 | 36.5 - 37.5 |
| M | 28 -29 | 38.5 - 39.5 |
| L | 30 - 32 | 41 - 42.5 |
| XL | 34 -36 | 44.5 - 46 |
MEASURING
Garments
Garment patterns are based on bust, waist and hip measurements.
SIZING GUIDELINES
|
IMPERIAL |
0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| BUST | 32 | 33 | 34 | 35 | 36 | 37 | 38.5 | 40 | 42 | 44 | 46 |
| WAIST | 24 | 25 | 26 | 27 | 28 | 29 | 30.5 | 32 | 34 | 36 | 38 |
| HIPS | 35 | 36 | 37 | 38 | 39 | 40 | 41.5 | 43 | 45 | 47 | 49 |
| METRIC (centimeters) |
0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| BUST | 81 | 84 | 86 | 89 | 91 | 94 | 98 | 102 | 107 | 112 | 117 |
| WAIST | 61 | 64 | 66 | 69 | 71 | 74 | 77 | 81 | 86 | 91 | 97 |
| HIPS | 89 | 91 | 94 | 97 | 99 | 102 | 105 | 109 | 114 | 119 | 125 |
MEASURING
$ 17.99
Sizing Information
Bras
There is no single measurement method to determine bra size what bra size will work for every body. The only reliable way to determine bra size is to try on finished bras made from that pattern. Given the bra sizing challenge, we recommend starting by making your ready-to-wear size.
If you do not have a ready-to-wear size or at a loss for what size to start with, we offer the below sizing guidelines for our bra sewing patterns. If you have any sizing questions, feel free to contact us!
SIZING GUIDELINES
| DIFFERENCE | CUP SIZE |
| 1" | A |
| 2" | B |
| 3" | C |
| 4" | D |
| 5" | DD or E |
| 6" | DDD or F |
| 7" | G |
| 8" | H |
| 9" | I |
| 10" | J |
MEASURING
- When taking measurements, be sure to stand up straight and exhale fully.
- Measure body circumference directly under the bust with the tape measure parallel to floor. Round the measurement to the nearest inch, rounding down if you are at the ½” mark.This is the band size.
- Measure body circumference at the fullest part of the bust while wearing a bra that is supportive yet made of a relatively thin fabric. Again, keep the tape measure parallel to the floor.
- Derive cup size by subtracting the band size from the full bust measurement. Consult the chart below to find cup size. For example, if the full bust is 36″ and the band size is 34″, the difference is 2″. Based on the cup size chart above, this difference corresponds to a B cup. If you are in between sizes, use the larger size.
SISTER SIZES
Sister sizes are bra sizes that have the same bra cup volume and underwire size. The difference between sister sizes is the size of the band. For example, the sizes 30D, 32C, 34B and 36A all have the same cup volume and use the same underwire. The difference between those sizes is the band. This blog post has instructions for how to modify the band to reach the sister sizes on this table.
| WIRE | BRA SIZE | |||||||||
| 28 | 30A | |||||||||
| 30 | 30B | 32A | ||||||||
| 32 | 30C | 32B | 34A | |||||||
| 34 | 30D | 32C | 34B | 36A | ||||||
| 36 | 30DD | 32D | 34C | 36B | 38A | |||||
| 38 | 30DDD | 32DD | 34D | 36C | 38B | 40A | ||||
| 40 | 30G | 32DDD | 34DD | 36D | 38C | 40B | 42A | |||
| 42 | 30H | 32G | 34DDD | 36DD | 38D | 40C | 42B | 44A | ||
| 44 | 30I | 32H | 34G | 36DDD | 38DD | 40D | 42C | 44B | 46A | |
| 46 | 30J | 32I | 34H | 36G | 38DDD | 40DD | 42D | 44C | 46B | 48A |
| 48 | 32J | 34I | 36H | 38G | 40DDD | 42DD | 44D | 46C | 48B | |
| 50 | 34J | 36I | 38H | 40G | 42DDD | 44DD | 46D | 48C | ||
| 52 | 36J | 38I | 40H | 42G | 44DDD | 46DD | 48D | |||
| 54 | 38J | 40I | 42H | 44G | 46DDD | 48DD | ||||
| 56 | 40J | 42I | 44H | 46G | 48DDD | |||||
Note: Only the Marlborough, Boylston and Devonshire bras cover the entire range. The remainder of the bra patterns extend from A to DD only.
INTERNATIONAL CUP SIZE CONVERSION
| USA | UK | France, Spain, Belgium | Italy, Czech Republic | EU, Japan | Australia, New Zealand |
| AA | AA | AA | --- | AA | --- |
| A | A | A | A | A | A |
| B | B | B | B | B | B |
| C | C | C | C | C | C |
| D | D | D | D | D | D |
| DD or E | DD | E | DD | E | DD |
| DDD or F | E | F | E | F | E |
| DDDD or G | F | G | F | G | F |
| DDDDD or H | FF | H | FF | H | FF |
| I | G | I | G | I | G |
| J | GG | J | GG | J | GG |
INTERNATIONAL BAND SIZE CONVERSION
| USA | UK | France, Spain, Belgium | Italy, Czech Republic | EU, Japan | Australia, New Zealand |
| 30 | 30 | 80 | 0 | 65 | 8 |
| 32 | 32 | 85 | 1 | 70 | 10 |
| 34 | 34 | 90 | 2 | 75 | 12 |
| 36 | 36 | 95 | 3 | 80 | 14 |
| 38 | 38 | 100 | 4 | 85 | 16 |
| 40 | 40 | 105 | 5 | 90 | 18 |
| 42 | 42 | 110 | 6 | 95 | 20 |
| 44 | 44 | 115 | 7 | 100 | 22 |
| 46 | 46 | 120 | 8 | 105 | 24 |
| 48 | 48 | 125 | 9 | 110 | 26 |
| 50 | 50 | 130 | 10 | 115 | 28 |
Underwear
Underwear patterns are based on a waist and hip measurement.
SIZING GUIDELINES
| SIZE | WAIST (inches) | HIP (inches) |
| XS | 24 -25 | 34.5 - 35.5 |
| S | 26 - 27 | 36.5 - 37.5 |
| M | 28 -29 | 38.5 - 39.5 |
| L | 30 - 32 | 41 - 42.5 |
| XL | 34 -36 | 44.5 - 46 |
MEASURING
Garments
Garment patterns are based on bust, waist and hip measurements.
SIZING GUIDELINES
|
IMPERIAL |
0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| BUST | 32 | 33 | 34 | 35 | 36 | 37 | 38.5 | 40 | 42 | 44 | 46 |
| WAIST | 24 | 25 | 26 | 27 | 28 | 29 | 30.5 | 32 | 34 | 36 | 38 |
| HIPS | 35 | 36 | 37 | 38 | 39 | 40 | 41.5 | 43 | 45 | 47 | 49 |
| METRIC (centimeters) |
0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| BUST | 81 | 84 | 86 | 89 | 91 | 94 | 98 | 102 | 107 | 112 | 117 |
| WAIST | 61 | 64 | 66 | 69 | 71 | 74 | 77 | 81 | 86 | 91 | 97 |
| HIPS | 89 | 91 | 94 | 97 | 99 | 102 | 105 | 109 | 114 | 119 | 125 |
MEASURING
Digital Download will be instantly delivered to your email inbox upon purchase
Sizing Information
Bras
There is no single measurement method to determine bra size what bra size will work for every body. The only reliable way to determine bra size is to try on finished bras made from that pattern. Given the bra sizing challenge, we recommend starting by making your ready-to-wear size.
If you do not have a ready-to-wear size or at a loss for what size to start with, we offer the below sizing guidelines for our bra sewing patterns. If you have any sizing questions, feel free to contact us!
SIZING GUIDELINES
| DIFFERENCE | CUP SIZE |
| 1" | A |
| 2" | B |
| 3" | C |
| 4" | D |
| 5" | DD or E |
| 6" | DDD or F |
| 7" | G |
| 8" | H |
| 9" | I |
| 10" | J |
MEASURING
- When taking measurements, be sure to stand up straight and exhale fully.
- Measure body circumference directly under the bust with the tape measure parallel to floor. Round the measurement to the nearest inch, rounding down if you are at the ½” mark.This is the band size.
- Measure body circumference at the fullest part of the bust while wearing a bra that is supportive yet made of a relatively thin fabric. Again, keep the tape measure parallel to the floor.
- Derive cup size by subtracting the band size from the full bust measurement. Consult the chart below to find cup size. For example, if the full bust is 36″ and the band size is 34″, the difference is 2″. Based on the cup size chart above, this difference corresponds to a B cup. If you are in between sizes, use the larger size.
SISTER SIZES
Sister sizes are bra sizes that have the same bra cup volume and underwire size. The difference between sister sizes is the size of the band. For example, the sizes 30D, 32C, 34B and 36A all have the same cup volume and use the same underwire. The difference between those sizes is the band. This blog post has instructions for how to modify the band to reach the sister sizes on this table.
| WIRE | BRA SIZE | |||||||||
| 28 | 30A | |||||||||
| 30 | 30B | 32A | ||||||||
| 32 | 30C | 32B | 34A | |||||||
| 34 | 30D | 32C | 34B | 36A | ||||||
| 36 | 30DD | 32D | 34C | 36B | 38A | |||||
| 38 | 30DDD | 32DD | 34D | 36C | 38B | 40A | ||||
| 40 | 30G | 32DDD | 34DD | 36D | 38C | 40B | 42A | |||
| 42 | 30H | 32G | 34DDD | 36DD | 38D | 40C | 42B | 44A | ||
| 44 | 30I | 32H | 34G | 36DDD | 38DD | 40D | 42C | 44B | 46A | |
| 46 | 30J | 32I | 34H | 36G | 38DDD | 40DD | 42D | 44C | 46B | 48A |
| 48 | 32J | 34I | 36H | 38G | 40DDD | 42DD | 44D | 46C | 48B | |
| 50 | 34J | 36I | 38H | 40G | 42DDD | 44DD | 46D | 48C | ||
| 52 | 36J | 38I | 40H | 42G | 44DDD | 46DD | 48D | |||
| 54 | 38J | 40I | 42H | 44G | 46DDD | 48DD | ||||
| 56 | 40J | 42I | 44H | 46G | 48DDD | |||||
Note: Only the Marlborough, Boylston and Devonshire bras cover the entire range. The remainder of the bra patterns extend from A to DD only.
INTERNATIONAL CUP SIZE CONVERSION
| USA | UK | France, Spain, Belgium | Italy, Czech Republic | EU, Japan | Australia, New Zealand |
| AA | AA | AA | --- | AA | --- |
| A | A | A | A | A | A |
| B | B | B | B | B | B |
| C | C | C | C | C | C |
| D | D | D | D | D | D |
| DD or E | DD | E | DD | E | DD |
| DDD or F | E | F | E | F | E |
| DDDD or G | F | G | F | G | F |
| DDDDD or H | FF | H | FF | H | FF |
| I | G | I | G | I | G |
| J | GG | J | GG | J | GG |
INTERNATIONAL BAND SIZE CONVERSION
| USA | UK | France, Spain, Belgium | Italy, Czech Republic | EU, Japan | Australia, New Zealand |
| 30 | 30 | 80 | 0 | 65 | 8 |
| 32 | 32 | 85 | 1 | 70 | 10 |
| 34 | 34 | 90 | 2 | 75 | 12 |
| 36 | 36 | 95 | 3 | 80 | 14 |
| 38 | 38 | 100 | 4 | 85 | 16 |
| 40 | 40 | 105 | 5 | 90 | 18 |
| 42 | 42 | 110 | 6 | 95 | 20 |
| 44 | 44 | 115 | 7 | 100 | 22 |
| 46 | 46 | 120 | 8 | 105 | 24 |
| 48 | 48 | 125 | 9 | 110 | 26 |
| 50 | 50 | 130 | 10 | 115 | 28 |
Underwear
Underwear patterns are based on a waist and hip measurement.
SIZING GUIDELINES
| SIZE | WAIST (inches) | HIP (inches) |
| XS | 24 -25 | 34.5 - 35.5 |
| S | 26 - 27 | 36.5 - 37.5 |
| M | 28 -29 | 38.5 - 39.5 |
| L | 30 - 32 | 41 - 42.5 |
| XL | 34 -36 | 44.5 - 46 |
MEASURING
Garments
Garment patterns are based on bust, waist and hip measurements.
SIZING GUIDELINES
|
IMPERIAL |
0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| BUST | 32 | 33 | 34 | 35 | 36 | 37 | 38.5 | 40 | 42 | 44 | 46 |
| WAIST | 24 | 25 | 26 | 27 | 28 | 29 | 30.5 | 32 | 34 | 36 | 38 |
| HIPS | 35 | 36 | 37 | 38 | 39 | 40 | 41.5 | 43 | 45 | 47 | 49 |
| METRIC (centimeters) |
0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| BUST | 81 | 84 | 86 | 89 | 91 | 94 | 98 | 102 | 107 | 112 | 117 |
| WAIST | 61 | 64 | 66 | 69 | 71 | 74 | 77 | 81 | 86 | 91 | 97 |
| HIPS | 89 | 91 | 94 | 97 | 99 | 102 | 105 | 109 | 114 | 119 | 125 |
MEASURING
Details
The Boylston bra first appeared in an article Norma wrote for Threads Magazine (Issue #174). This pattern is incredibly versatile allowing you to make your own custom foam bra, standard cut-and-sew bra or even bikini top.
The Boylston is a versatile and supportive full frame underwire bra for everyday featuring:
- A three piece, demi cup that allows for shaping and the ability to play with prints and color combinations;
- A comfortable fabric strap that creates a flattering neckline;
- A design that is compatible for use with cut-and-sew foam, luxury linings and a variety of trim options; and
- A comfortable scoop back that lies smoothly under clothes and enhances support.
Notable Sewing Pattern Features:
- An instantly downloadable PDF pattern
- All pattern pieces except the strap and cup sizes beyond 40DD upper cup fit entirely inside the printable space of US Letter or A4 size paper. For printing ease each size is grouped together.
- All pattern pieces are separate, not nested, and clearly show the seam allowance and/or trim allowance as applicable. This allows for construction clarity and simplifies any pattern alterations.
- The instructions are professionally illustrated, making the seemingly complex steps of bra construction very clear and easy to understand.
- This pattern was reviewed and graded by professionals who typically send their output directly into production so you can be extra confident that you have a great starting point for your garment.
Size Range:
Available in either A to DD or DDD to J size ranges for 30 to 40 band sizes. Please select the correct size!
Printing Note:
Find your size to select which pages to print. The complete document is over 75 pages.
© Orange Lingerie 2014-2016. For individual use only, commercial production from this pattern is prohibited.
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Downloadable PDF patterns
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SEPARATE PATTERN PIECES
All pattern pieces are separate, not nested, and clearly show the seam allowance and/or trim allowance as applicable. This allows for construction clarity and simplifies any pattern alterations.
PROFESSIONALLY ILLUSTRATED
The instructions are professionally illustrated, making the seemingly complex steps of bra construction very clear and easy to understand.
GRADED BY PROFESSIONALS
This pattern was graded by professionals who send their output directly into production so you can be extra confident that you have a great starting point for your garment.