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Robin Bra Sewalong

5 Lessons taught by Haley

567 Seamwork members have watched this class.

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Lesson 3: Fabric & Supplies

In this lesson, Haley covers what fabrics will work great for the Robin bralette and what other supplies you’ll need for this project. What fabric are you using? Be sure to share over in the Community.


When you’re prepping to sew this project and you check out the supplies and fabric list, you might feel a little overwhelmed, but I’m going to try to make this part a little bit easier by showing you all of the supplies, so you’ll feel a lot more confident when you’re assembling your gear.

So when you’re gathering your supplies for your Robin bra, you might feel a little intimidated because there is kind of some different things if you’re not used to sewing lingerie. But I’m going to show you what all of the notions and findings look like.

First, just like any project you’re going to want some thread. I have all-purpose polyester sewing thread here. A needle, I really like a stretch needle specifically for this project, since you’ll be sewing through elastic and a stretch needle is just a little bit better for that job. Don’t live dangerously like me and definitely have more than one needle on hand because you might break a needle. Hopefully I don’t. You’ll need four rings and two sliders for this bra. Mine are mismatched. That’s okay. I don’t particularly care, but you might.

You can also, a little like tip is, if you have an old bra that needs to be retired, you could totally cut these out of those and you can do the same actually, with the bra clasp, if it isn’t too worn out.

If you are making the size range 00 - 16, you’ll need a three row hook and eye clasp. If you are making the 12 - 26, you’ll need to get one that has four rows, this just adds a little bit more support to the bra.

Let’s talk about all those specialty elastics. So, first you’re going to need some bra strapping.

Bra strapping has usually kind of a silky smooth side, and then it has the plush side. The plush side lays against your body makes it a little bit more comfortable to wear, and it also has a little bit of stretch, it’s elastic, which adds to the comfort factor there.

You’ll need two sizes of the picot edge elastic. The 3/8 inch size is going to go along the neckline and on the underarms and back again. Just like the strapping, this has kind of like a smoother side and then a plush side. The plush side goes right up against your body.

And then, depending on your size range that you’re making, you’ll also need a wider width. If you are making the 00 - 16, you’ll need 3/4 inch. If you’re making the 12 - 26, you’ll need 1 inch. Again, this is plush back, right up against your skin and has that decorative little picot edge there.

Some additional tools that you might find to be handy are some clips. Whenever I’m sewing anything that has
a lot of elastic, I love clips. They’re just a lot easier to use than pins. Totally optional, you can use pins too, but I like these.

Some nice pointy, sharp trimming scissors. You’re going to be doing some trimming, and this will just make it easier. There’s a ton of stitching and threads, so you really want to snip your threads as you go.

A seam ripper because you’ll make mistakes, I’ll make mistakes, we’ll all make mistakes.

And then, of course, a little seam gauge just to check our seam allowances as we go, any other measuring we need, sewing lingerie isn’t hard, but it is precise. So have a seam gauge on hand. Those are all of my supplies.

Let’s take a look at some fabric. Okay, so I’ve talked about the negative ease in this pattern a little bit before, but if you want to rely on the negative ease drafted into this pattern, you need to find a fabric that has adequate stretch. So what we’re recommending is a fabric with 50% stretch or more.

If you have your instructions printed out or if you just print out this page, we have a great little stretch guide here, and it shows you how to stretch your fabric to determine how muchstretch percentage it has. So you’ll take a four inch piece of fabric and just stretch it and you want to make sure that it stretches to here.

So I’m going to show you some examples of fabrics that would work well. Here I have three different kinds of jersey. I wanted to show you all jersey because it’s really readily available at most fabric stores. But you can also use things like stretch mesh, stretch, lace, rib knit, any kind of knit as long as it is a four- way stretch and has at least 50% stretch.

So first I have in the center this pink fabric. This is what I’m going to be demonstrating on today, and it is a cotton/spandex blend. This is a little bit more stable, it doesn’t roll around on you as much, so this will be really great to sew with if this is maybe your first bra. It has a good amount of stretch in both directions, and it’s lightweight enough that I know it’s not going to be too bulky for this bra. Since it is a lined bra, I want to make sure that the seams don’t get too bulky on me.

Next, I have this beautiful rayon knit in this like really pretty teal forest green color. Again, stretches great in the width and then in the length also have really great stretch. Rayon knits tend to roll a lot more aggressively, so that’s just something to watch out for. When you’re doing this kind of precision sewing, you want to be really mindful of your seam allowances, so a fabric that rolls like this can just be a little bit trickier, but works really well. We’re going to make a photo sample out of it as well.

And then I have this lovely double brush polyester. I know a lot of people have feelings about polyester. It’s okay to have feelings about it, but I would like to say it goes a long way, it has a really good, this double brush stuff has a really good hand, really smooth. So it is really great for lingerie items. Great stretch and the width and the length again, this is a lot like the rayon, you can see it has this tendency to roll a little bit on you. That’s okay, you just want to be a little bit more cautious with your seam allowances to make sure that you’re being precise. But it’s really smooth and soft and would make a really good lining because it’s nice and smooth against your body.

And those are some kind of fabric examples for what would work really well for the Robin bra. Now that we’ve gathered and all of our supplies, let’s get sewing.

Robin Bra Sewalong

Here’s what you’ll need for this project:

  • Robin bra pattern

  • Light to medium weight knits with four-way stretch with 50% stretch and good recovery

  • All-purpose polyester sewing thread

  • Ballpoint sewing machine needle

  • Four 1/2” (13 mm) rings and two sliders

  • 1 1/2 yards (1.4 meters) 1/2” (13 mm) of wide bra strapping

  • 1 1/2 yards (1.4 meters) of 3/8” (10 mm) picot elastic

  • 1 yard (.9 meters) of 3/4” picot elastic (20 mm) (sizes 00 - 16) or 1” (2.5 cm) picot elastic (sizes 12 - 26)

  • One hook and eye bra closure. Sizes 00-16: 3 hook closure finishing at 2 1/4” (5.7 cm). Sizes 12-26: 4 hook closure finishing at 3” (10.2 cm).


Work alongside other sewists by participating in the Seamwork community. Ask and answer questions, share your progress, get inspired by real-life sewists, and post your finished projects.

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