Swimsuit Making for Curves

Sew a chic and supportive swimsuit that will make you feel fantastic!

  • Do you find it hard to get both the style and support you want in a swimsuit?
  • Are you a bit intimidated by the idea of sewing a swimsuit?
  • Want to finally make the supportive and chic swimsuit of your dreams, with help at every step?

Then join my online workshop "Swimsuit Making for Curves"!

From the comfort of home, join me as I simply and clearly explain every step of sewing your own supportive swimsuit, from choosing the right fabric and notions, to sewing with spandex and sewing an actual underwired bra - it's easier than you would imagine.


Welcome to Swimsuit Making for Curves. A great swimsuit has the power to help you feel your most confident best, and in this course, join me to learn how to make your very own!

I developed the Ipswich Swimsuit to be chic on the outside and supportive on the inside, thanks to an optional built-in, underwired swim bra and side boning. Why should you have to compromise on style and fit just because you're curvy? But sewing your first swimsuit can be a bit intimidating, so that's why I designed this new course; even if you're an adventurous sewing beginner, you can get a wonderful result.

In this workshop, I take you step by step through everything you need to know about sewing your underwired swimsuit, from picking the right fabrics and notions, to special sewing techniques, and working with spandex.

Included in the course is a free* copy of the Cashmerette Ipswich Swimsuit pattern (choose from a downloadable PDF or a paper version that will be mailed to you). The Ipswich Swimsuit was designed for curves, in sizes 12 - 28 and cup sizes C - H. Already have the Ipswich? No problem - you can use the coupon on any other pattern, too.

I'm looking forward to seeing what you make!

*Shipping charge applies for paper pattern.


Sewing lessons whenever and wherever you want.

Unlike regular classes, there's no need to block off time in your schedule or arrange to travel - you can watch the videos on your laptop, tablet or phone, and master swimsuit-making from the comfort of home. Learn at your own pace, and re-watch the videos as many times as you like - they never expire! Plus, you'll have 24/7 access, and it's the fraction of the price of an in-person class.

Get additional help

Do you have questions about the lessons? Just ask in the comments section, and you'll get personal feedback.


Skills you'll learn in the course include:

  • How to identify good quality spandex, and where to find it
  • De-mystifying swim bra fabric and notions, and tips for easier options if you're a beginner
  • What tools you need to make a swimsuit - and which are optional but will help you get a professional result
  • How to sew a swimsuit on a single, regular home sewing machine
  • Lining a swimsuit for a clean internal finish and to avoid transparency when wet
  • How to sew a full underwired foam swim bra, without the need for pre-formed foam cups
  • Adding boning for extra support
  • How to create extra-supportive swimsuit straps
  • Clean-finishing the gusset for no seams
  • Installing swimwear closures

Your Instructor

Jenny Rushmore
Jenny Rushmore

Hi, I'm Jenny! I founded Cashmerette because I was so frustrated with never being able to find clothes that fit my plus size, curvy body (hello, H cups!).

I learned to sew at the tender age of 30, excited by the potential of being able to make clothes that fit me, and also reflected my bold, print-loving style. But I immediately faced the same issue that I did with store-bought clothes: most of them didn’t come anywhere near to fitting me well, not least because most were designed for a B cup.

So I learned how to alter patterns and had the (literally!) life changing revelation: that I could change my clothes to fit my body, rather than changing my body to fit clothes.

And well, the rest is history! At Cashmerette we have the patterns, books, and workshops that I wish had existed when I learned to sew. This, here, is my life’s mission, and I’m so glad you’re along for the ride!

As for the rest of my life? Well, I live with my daughter just outside of Boston, Massachusetts, but I’m originally from the UK (still have the accent!), and am very familiar with the British Airways Boston-London flight schedules. When I get the time, I also love drawing, painting, and cooking fancy things.

Frequently Asked Questions

Sounds great! How can I join?
Sign up below to reserve your spot in class. You'll be able to start watching the videos right away, and you'll get an email with a link that will take you right back to your course at any time.
What sewing equipment do I need?
You'll need a sewing machine with a straight and zigzag stitch and although it's nice to have a serger too, it's not necessary. Then, you'll need a basic sewing toolkit. All the tools will be detailed in the introduction.
How long does it take to do the course?
It's really up to you! The course is broken down into short video lessons on each topic, and you can watch them over time, or in a binge weekend, depending on what suits you! And, you can always go back and re-watch again. In total, the video lessons are just under 4 hours.
How do I receive my free pattern?
You can receive your free pattern as a downloadable PDF pattern or a paper pattern that will be mailed to you. When you enroll in the course, you'll be given a one-off coupon code to order your pattern at our store. Please note, an additional shipping charge applies for the paper pattern.
When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.

Get started now!