Online course

Hanna bikini

Learn to sew swimwear using the Hanna bikini sewing pattern. You’ll find step-by-step video classes about everything you need to know to make a custom fit bikini at home.

Learn how to fit the pattern to your cup size, how to sew with swimwear fabrics and how to attach elastics with professional results.

Continue reading to see the complete course plan.

Online course with step-by-step video classes about every aspect of the sewing process

+

Online community to sew in company and share your process

Online course + sewing pattern: 59 eur

Enjoy the launch discount and get the course 15% off until this Sunday, 15th of June 2025

(if you already own the Hanna bikini sewing pattern, sign up here)

course content

Part 1: INTRODUCTION and SUPPLIES

  • introduction about pattern options and how to print the pattern correctly

  • supplies that can be used for the exterior part of swimwear (how to choose swimwear fabrics)

  • recognizing different linings (swim lining, power mesh, foam, etc.)

  • which elastics and closures are used and where

  • bigger cup sizes: which specific materials you can use to achieve the support you need

  • what tools you need (machines, cutting tools, etc.)

Part 2: FITTING

  • taking measurements: what measurements you need and how to take them correctly

  • sizing: how it works, understanding the cup and band sizing

  • testing the size: how to sew a test with knit fabric

  • individual fitting help: how to see if the size is correct, how to self-assess, and what to consider for possible pattern modifications

  • two case studies of real people + evaluating the fitting for their size

  • pattern alterations to achieve a perfect fit

Part 3: CUTTING and SEWING

  • Identifying all the pieces that make up the bikini, choosing the cup option

  • cutting with a rotary cutter, marking the pieces

  • learning which stitches are used for each part of the bikini

  • assembling the pieces

  • learning how to sew the elastics and how to get the correct tension

Part 4: CLOSURES, STRAPS, BIKINI BOTTOMS

  • how to sew the clasp closure and the tie closure

  • how to sew regular straps and a tie at the neck

  • choosing the style and the size and sewing the panties

    Part 5: EXTRAS

  • how to convert the bikini pattern into a swimsuit

  • how to incorporate straps for the panties

Online course Hanna bikini

Course duration:

lifetime access to all the content, learn whenever you want

Course price:

59€ (includes the Hanna bikini PDF sewing pattern)

Reviews by students who have already enrolled in this online course

Sewing pattern

The pattern we use in this online course is the Hanna bikini (you can see the versions people have made with this pattern here). The sizes included in this pattern have a band circumference (the measurement just below the bust) of 60 cm to 110 cm (24”-44”). The cup size ranges from A to F. Once you have paid for the course, you will receive your copy of the pattern in PDF format. If you have already purchased the pattern, access the course here and you will receive a discount.

Supplies

The price of the online course does not include the supplies for sewing the bikini. In the first class, I’ll show you which supplies you need and where to get them. You can also check this blog post for a list of online stores. To sew your bikini, you will need a domestic sewing machine that can sew a normal zigzag stitch. It is not mandatory to use a serger, but you can do so if you wish. The techniques for sewing with both a sewing machine and a serger will be explained.

Skill level

This course is aimed at people who know how to use a sewing machine with ease. You don't need to be at an advanced level, but this is a project for people with at least an intermediate level. You need to have some experience sewing with fine fabrics in order to handle the small pieces that make up the bikini. You don't need to have any experience sewing lingerie or swimwear; in this course, you'll learn everything from scratch!

Course format

The course consists of detailed, educational videos covering everything you need to know to sew your own swimwear from scratch. You can watch the videos at your own pace and as many times as you need, because you will have a lifetime access to the course content.

If you have any questions or concerns, I will always answer them below each class, where you can leave your comments!

Along with the online course, you also have access to the online student community within the same platform, where you can share your sewing projects with other seamstresses.

Course duration

Access to the course content and the student community is permanent, so you can refer to the classes whenever you need.

Why should you enroll in this course?

Because sewing swimwear is really cool, but people often tell me that it's a little scary to do it alone at home for the first time! In this course, you can do it at your own pace with detailed videos, but with the assurance that you have someone on the other side of the screen (me!) who can advise you on any questions you may have.

I have been teaching in-person lingerie and swimwear courses for years and general sewing classes for even longer. You can rest assured that I will pass on the knowledge you need to avoid frustration with your swimwear projects. Because yes, the beginning can be complicated... but it doesn't have to be if you have the necessary tools and knowledge. You'll see that it's not that big of a deal!

If you have any questions or concerns, please don't hesitate to contact me by email: info@studiocostura.com

 

Some Hanna bikini makes by stduents from in-person sewing courses