Somerville Sports Bra
Work out without compromise in the Somerville Sports Bra!
Designed by industry experts specifically for big boobs, this underwired sports bra delivers remarkable support in 120+ sizes from 28C to 54J. The front zip makes getting in and out easy, while two back options including a sporty cut-out design let you choose your own style.
Finally, a sports bra designed for full busts that gives you the support you deserve!
BONUS: Includes our Sew a Bra That Fits ebook free with the pattern download.
Overview
| Sewing level | Intermediate |
| Sizing | 28C-54J |
| Cup sizes | C-J |
| Fabric type | Woven, bra fabric |
| Pattern hashtag |
PDF Info
| Delivery method | Instant download ZIP file |
| Layers available | Yes |
| Number of pages: print at home file (A4/letter) | 4-10 per size |
| Number of pages: copyshop file (A0) | 1 per size |
| PDF pattern help |
Pattern Options
| Back | Solid, sporty cut-out |
Fabric & Supplies
| Main fabric | Lightweight non-stretch fabric (such as duoplex, cotton poplin, or quilting cottons). Note: Most non-stretch fabrics have a little mechanical stretch on the bias, which is desirable for this pattern. If your fabric does not have this, the cup fit will be more snug. |
| Lining | Lightweight non-stretch fabrics (such as 15 denier bra cup lining or nylon tricot). Note: Most non-stretch fabrics have a little mechanical stretch on the bias, which is desirable for this pattern. If your fabric does not have this, the cup fit will be more snug. |
| Back band | Mid- to heavy-weight stretch fabric with up to 50% stretch (such as nylon/spandex power mesh) |
| Interfacing | 2" x 10" (5 cm x 25 cm) piece of lightweight woven fusible interfacing (for zipper guard) |
| Band elastic | 1 1/2 yd (1.4 m) of 3/4” (19 mm) wide plush back elastic with optional picot edge |
| Underarm and neckline elastic | 3 3/8 yd (3.1 m) of 3/8”-1/2” (10-12 mm) wide plush back elastic with optional picot edge |
| Underwire channeling | 1 1/8 yd (1.1 m) of 3/8”-1/2” (10-12 mm) wide plush backed underwire channeling |
| Underwires | One pair of regular heavy duty underwires |
| Hook and eye | One set of 1/2" (12 mm) large size (coat style) |
| Zipper | Molded #3 separating zipper, at least 6 3/4" (17 cm) long |
| Needle | Universal or microtex needle, hand needle |
| Thread | Regular thread |
| Tools | Tailor’s ham or rolled up towel, tailor’s chalk or other marking tool, zipper foot, walking foot (optional) |
Rachel
| Size | 38I |
| Full bust | 48" / 122 cm |
| Underbust | 37" / 94 cm |
| Height | 5' 5" |
Brit
| Size | 30I |
| Full bust | 40" / 101.5 cm |
| Underbust | 30.5" / 77.5 cm |
| Height | 5' 6" |
Somerville Sports Bra Sewalong
Sew the Somerville alongside Mari of Sew Happy.
Underwire sports bra sewing pattern with front zipper, 4-piece cups, and two back options including sporty cut-out. Exceptional support in sizes 28C-54J. Free bra fitting ebook included!
Why it’s special:
C-J cups
Incredible support & shaping for big boobs
Zipper shield
Nursing friendly
More like this: Lingerie / Activewear / Bestsellers
Adding product to your cart
Work out without compromise in the Somerville Sports Bra!
Designed by industry experts specifically for big boobs, this underwired sports bra delivers remarkable support in 120+ sizes from 28C to 54J. The front zip makes getting in and out easy, while two back options including a sporty cut-out design let you choose your own style.
Finally, a sports bra designed for full busts that gives you the support you deserve!
BONUS: Includes our Sew a Bra That Fits ebook free with the pattern download.
Overview
| Sewing level | Intermediate |
| Sizing | 28C-54J |
| Cup sizes | C-J |
| Fabric type | Woven, bra fabric |
| Pattern hashtag |
PDF Info
| Delivery method | Instant download ZIP file |
| Layers available | Yes |
| Number of pages: print at home file (A4/letter) | 4-10 per size |
| Number of pages: copyshop file (A0) | 1 per size |
| PDF pattern help |
Pattern Options
| Back | Solid, sporty cut-out |
Fabric & Supplies
| Main fabric | Lightweight non-stretch fabric (such as duoplex, cotton poplin, or quilting cottons). Note: Most non-stretch fabrics have a little mechanical stretch on the bias, which is desirable for this pattern. If your fabric does not have this, the cup fit will be more snug. |
| Lining | Lightweight non-stretch fabrics (such as 15 denier bra cup lining or nylon tricot). Note: Most non-stretch fabrics have a little mechanical stretch on the bias, which is desirable for this pattern. If your fabric does not have this, the cup fit will be more snug. |
| Back band | Mid- to heavy-weight stretch fabric with up to 50% stretch (such as nylon/spandex power mesh) |
| Interfacing | 2" x 10" (5 cm x 25 cm) piece of lightweight woven fusible interfacing (for zipper guard) |
| Band elastic | 1 1/2 yd (1.4 m) of 3/4” (19 mm) wide plush back elastic with optional picot edge |
| Underarm and neckline elastic | 3 3/8 yd (3.1 m) of 3/8”-1/2” (10-12 mm) wide plush back elastic with optional picot edge |
| Underwire channeling | 1 1/8 yd (1.1 m) of 3/8”-1/2” (10-12 mm) wide plush backed underwire channeling |
| Underwires | One pair of regular heavy duty underwires |
| Hook and eye | One set of 1/2" (12 mm) large size (coat style) |
| Zipper | Molded #3 separating zipper, at least 6 3/4" (17 cm) long |
| Needle | Universal or microtex needle, hand needle |
| Thread | Regular thread |
| Tools | Tailor’s ham or rolled up towel, tailor’s chalk or other marking tool, zipper foot, walking foot (optional) |
Rachel
| Size | 38I |
| Full bust | 48" / 122 cm |
| Underbust | 37" / 94 cm |
| Height | 5' 5" |
Brit
| Size | 30I |
| Full bust | 40" / 101.5 cm |
| Underbust | 30.5" / 77.5 cm |
| Height | 5' 6" |
Somerville Sports Bra Sewalong
Sew the Somerville alongside Mari of Sew Happy.
Body Measurements (in)
| Under bust measurement (in) | 28-29 | 30-31 | 32-33 | 34-35 | 36-37 | 38-39 | 40-41 | 42-43 | 44-45 | 46-47 | 48-49 | 50-51 | 52-53 | 54-55 |
| Band size | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 |
| Full bust (in) | ||||||||||||||
| 31 | 28C | |||||||||||||
| 32 | 28D | |||||||||||||
| 33 | 28DD | 30C | ||||||||||||
| 34 | 28E | 30D | ||||||||||||
| 35 | 28F | 30DD | 32C | |||||||||||
| 36 | 28G | 30E | 32D | |||||||||||
| 37 | 28H | 30F | 32DD | 34C | ||||||||||
| 38 | 28I | 30G | 32E | 34D | ||||||||||
| 39 | 28J | 30H | 32F | 34DD | 36C | |||||||||
| 40 | 30I | 32G | 34E | 36D | ||||||||||
| 41 | 30J | 32H | 34F | 36DD | 38C | |||||||||
| 42 | 32I | 34G | 36E | 38D | ||||||||||
| 43 | 32J | 34H | 36F | 38DD | 40C | |||||||||
| 44 | 34I | 36G | 38E | 40D | ||||||||||
| 45 | 34J | 36H | 38F | 40DD | 42C | |||||||||
| 46 | 36I | 38G | 40E | 42D | ||||||||||
| 47 | 36J | 38H | 40F | 42DD | 44C | |||||||||
| 48 | 38I | 40G | 42E | 44D | ||||||||||
| 49 | 38J | 40H | 42F | 44DD | 46C | |||||||||
| 50 | 40I | 42G | 44E | 46D | ||||||||||
| 51 | 40J | 42H | 44F | 46DD | 48C | |||||||||
| 52 | 42I | 44G | 46E | 48D | ||||||||||
| 53 | 42J | 44H | 46F | 48DD | 50C | |||||||||
| 54 | 44I | 46G | 48E | 50D | ||||||||||
| 55 | 44J | 46H | 48F | 50DD | 52C | |||||||||
| 56 | 46I | 48G | 50E | 52D | ||||||||||
| 57 | 46J | 48H | 50F | 52DD | 54C | |||||||||
| 58 | 48I | 50G | 52E | 54D | ||||||||||
| 59 | 48J | 50H | 52F | 54DD | ||||||||||
| 60 | 50I | 52G | 54E | |||||||||||
| 61 | 50J | 52H | 54F | |||||||||||
| 62 | 52I | 54G | ||||||||||||
| 63 | 52J | 54H | ||||||||||||
| 64 | 54I | |||||||||||||
| 65 | 54J |
Fabric Requirements (yd)
| Bands 28-44, Cup C-E | Bands 28-44, Cups F-J | Bands 46-54, Cups C-J | ||
|---|---|---|---|---|
| Main Fabric | 45" wide fabric | 5/8 | 3/4 | 7/8 |
| Lining Fabric | 45" wide fabric | 5/8 | 3/4 | 7/8 |
| Power Mesh Fabric | 45" wide fabric | 1/2 | 1/2 | 3/4 |
Body Measurements (cm)
| Under bust measurement (cm) | 72-76 | 77-81 | 82-86 | 87-91 | 92-96 | 97-101 | 102-106 | 107-111 | 112-116 | 117-121 | 122-126 | 127-131 | 132-136 | 137-142 |
| Band size | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 |
| Full bust (cm) | ||||||||||||||
| 79 | 28C | |||||||||||||
| 81 | 28D | |||||||||||||
| 84 | 28DD | 30C | ||||||||||||
| 86 | 28E | 30D | ||||||||||||
| 89 | 28F | 30DD | 32C | |||||||||||
| 91 | 28G | 30E | 32D | |||||||||||
| 94 | 28H | 30F | 32DD | 34C | ||||||||||
| 97 | 28I | 30G | 32E | 34D | ||||||||||
| 99 | 28J | 30H | 32F | 34DD | 36C | |||||||||
| 102 | 30I | 32G | 34E | 36D | ||||||||||
| 104 | 30J | 32H | 34F | 36DD | 38C | |||||||||
| 107 | 32I | 34G | 36E | 38D | ||||||||||
| 109 | 32J | 34H | 36F | 38DD | 40C | |||||||||
| 112 | 34I | 36G | 38E | 40D | ||||||||||
| 114 | 34J | 36H | 38F | 40DD | 42C | |||||||||
| 117 | 36I | 38G | 40E | 42D | ||||||||||
| 119 | 36J | 38H | 40F | 42DD | 44C | |||||||||
| 122 | 38I | 40G | 42E | 44D | ||||||||||
| 124 | 38J | 40H | 42F | 44DD | 46C | |||||||||
| 127 | 40I | 42G | 44E | 46D | ||||||||||
| 130 | 40J | 42H | 44F | 46DD | 48C | |||||||||
| 132 | 42I | 44G | 46E | 48D | ||||||||||
| 135 | 42J | 44H | 46F | 48DD | 50C | |||||||||
| 137 | 44I | 46G | 48E | 50D | ||||||||||
| 140 | 44J | 46H | 48F | 50DD | 52C | |||||||||
| 142 | 46I | 48G | 50E | 52D | ||||||||||
| 145 | 46J | 48H | 50F | 52DD | 54C | |||||||||
| 147 | 48I | 50G | 52E | 54D | ||||||||||
| 150 | 48J | 50H | 52F | 54DD | ||||||||||
| 152 | 50I | 52G | 54E | |||||||||||
| 155 | 50J | 52H | 54F | |||||||||||
| 157 | 52I | 54G | ||||||||||||
| 160 | 52J | 54H | ||||||||||||
| 163 | 54I | |||||||||||||
| 165 | 54J |
Fabric Requirements (m)
| Bands 28-44, Cup C-E | Bands 28-44, Cups F-J | Bands 46-54, Cups C-J | ||
|---|---|---|---|---|
| Main Fabric | 115 cm wide fabric | 0.6 | 0.7 | 0.8 |
| Lining Fabric | 115 cm wide fabric | 0.6 | 0.7 | 0.8 |
| Power Mesh Fabric | 115 cm wide fabric | 0.5 | 0.5 | 0.7 |
Make It an Outfit
Look Inside Our Patterns
Designed by curvy fitting experts
Our expert team crafts patterns specifically designed to fit and celebrate curves—because your body deserves clothes that work.
Sewing patterns made in your size
Band sizes 28-54 and cups C-J. Just choose your size using our bra fitting guide for the perfect fit.
Clear step-by-step instructions
Sew with confidence using our comprehensive instructions with clear diagrams and professional tips for every step.
Personal expert support
Expert help when you need it most. Our curvy fitting specialists provide personalized support to guide you through any challenge.
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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 >
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Contact UsFrequently Asked Questions
Use our bra size guide to find your Cashmerette size based on your measurements, not your ready-to-wear size.
In addition to the pattern pieces, you'll get comprehensive instructions with step-by-step illustrations, multiple printing format options for PDF patterns (print-at-home and copyshop), layered PDFs for easy printing, detailed cutting layouts, and access to video or photo sewalongs for many patterns.
You'll also get our Sew a Bra That Fits: A Complete Bra Fitting Guide included FREE with your pattern download.
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