Transform a sports bra into a binder: THE TUTORIAL
Is it possible to cheaply transform a simple sports bra into a binder? Would that binder be any easier to wear than what’s on the market right now?
WE DON’T KNOW, BUT WE’RE TRYING TO FIND OUT. If you’re willing to give it a try, here’s how.
How to use this tutorial: This is a rough draft for a tutorial to transform a basic sports bra into a binder. It's part of a conversation between me and you. If there's something that doesn't work for you or that you don't understand, please tell me about it or ask me for a better explanation.
As I hear from readers who try this project on their own, I will get a better sense of what I need to explain and what common problems are. Then I will update this blog or edit the tutorial. Right now these directions are intended for people who have a fair bit of understanding about sewing. Not everything is totally explained, and some of the methods are a little advanced. As this project grows and progresses, I want to refine the sewing methods used and the writing of this project until I can produce a version that works for absolute beginners as well as advanced sewists.
Health concerns: Binding can have negative health consequences for you. Right now, we have absolutely no solid knowledge about how this binder compares to other methods of binding. Binding can cause back pain, shortness of breath, tissue damage, skin rashes, and other problems. Please use caution; do not bind for more than eight hours or while you sleep, and stop wearing this binder if it causes you pain or discomfort. If you have a special health concern that makes binding especially difficult for you, eg. chronic pain or joint instability, please consider waiting to see what results other wearers have.
Participating in the project: When you make a boned binder, fill out the Prototype Registration Survey get your prototype number. This number will follow your binder.
Then, anyone who wears it can take the Boned Binder Health Effects Survey to give information on what wearing that binder has been like. That is how we will get information on what the health effects of these binders are.
Equipment needed:
Sewing machine with ballpoint/"for stretch fabrics" needle
Thread
Straight pins
Marking pen or chalk
Scissors
Measuring tape
Optional: 20-30 safety pins
Materials needed:
1 sports bra (also called "your binder" in this tutorial) Buy a simple sports bra in your usual size. If possible, buy the bra that matches your ribcage (underbust) measurement exactly or is a little loose. I have been using pull-over Fruit of the Loom sports bras because they're cheap and breathable. These bras already stretch a little to expand to the body they're covering—for example, a "size 36" bra may only have a 24-inch circumference when laid flat, but stretches elastically once the wearer puts it on. This is perfect.
In this project simpler is better, because bras with more support have a lot more shaping specifically to lift and separate, and we’re working on a whole different mechanism here. The ideal bra to work from has a seam at either side and is otherwise completely flat. The bras I have been using are 97% cotton, 3% spandex fabric. Bras with spaghetti straps are easier to hide under clothing; bras with solid straps provide more stability.
1" wide elastic You want three times the width of your binder laid flat—for example, if my binder laid flat is 12 inches from armpit to armpit, I want 36 inches of elastic. Then cut it into two equal pieces.
8-12 steel or plastic bones
For the purposes of simplicity, right now the formula I'm proposing is: Try bones the height of the centre of your binder, minus 1"/2.5cm. (This is not how you will lay them out, just how to get the height)
This tutorial assumes the use of heavy-duty cable ties, which are roughly as strong as spring steel. If you want to experiment, please see this tutorial for information on different types of boning and how to prepare them.
Bone casing (bone height + 1-2 inches) for all bones This tutorial has information on making bone casing. In this case, I have sewn twill tape together.
Instructions
Step 1: Elastic
1. Mark elastic placement:
At center front and at side seams, make marks 1/3 and 2/3 of the way up on the side seams, and 2/3 of the way up on the front seams.
2. Place bottom elastic
Line up the center of one piece of elastic with the center of the binder. Place it along the two bottom marks you put in the side seams.
It will continue around to the back of the garment
3. Zigzag stitch all around edge of elastic.
The zigzag stitch allows the elastic to stretch when you put your binder on.
4. Place top elastic.
Pin it to the marks you made, and then pin the elastic into a gradual curve.
5. Zigzag stitch all along top elastic.
Done step 1! Your elastic is finished.
Step 2: Bones
1. Prepare the casing
Cut your casing into pieces long enough for each bone, plus 1-2"/3-5cm, each. Fold the ends over.
So for example, if you had 8 bones 6"/15cm long, you would cut 8 strips of casing 7-8"/18-20cm each. Then the bone should fit inside with a little wiggle room on each end.
2. Experiment with bone placement.
Lay the bones out on your binder front and see what works, what looks good. Once you've got a placement you think works, then use safety pins to keep them in place, or sew them to the binder with a couple loose stitches. Try the binder on. See if it works for you. Will it look flatter if you have more bones? Are the bones obviously too long, creating a shelf effect, and need to be cut?
For example, when creating a binder for a large chest, I tried three bones a side, found it wasn't flat enough, but had a better time with 8:
A little suggestion: Don't place the bottom of your bones directly on the bottom edge of the binder. When I did that, I found there was a gap between the bottom of the binder and my chest, which felt weird and let sweat run down onto my stomach. It was more comfortable to place the bones slightly above it, creating a fold of fabric to catch the sweat.
3. Sew front bones in place.
Stitch along the sides of the boning casing. You might do this by putting your presser foot half on top of the boning casing, and stitching along the side of the casing, or it might mean using a zipper foot.
4. Add boning in the back.
Cut one bone down to the height of the binder in the back, where your elastic ends. Sew it down. This bone helps ease strain on your back; if back pain is a concern for you, more bones might help.
Step 3: Registration
Go to Boned Binder Prototype Registration and fill out information about this binder. A volunteer will email you with your Prototype Number. Please label your binder with this number, with a permanent marker, embroidery, or some other permanent method.
Then, as you or someone else wears this binder, you can use that Prototype Number to take the Health Effects Survey and let us know how it goes.
If you decide to make significant changes to the binder--for example, adding more elastic, or changing the length or number of bones--then you will have to take the Prototype Registration again and get a new Prototype Number, as it is, in effect, a different binder.
Also, if you write up your binder project anywhere, drop the Better Binder Project a link!












