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Double Bias Length Extension

Sep 27, 2010
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This technique came from a vintage suit I saw a few months ago. The idea was used to extend the sleeves with bias fabric inserts. The suit was in a very small glen plaid and the inserts on the bias added interest. I thought it would also be a great way to extend a pant hem or add interest to a straight skirt. This technique could be used to lengthen different areas in a garment but also to add interest using contrasting colors as it is shown here.

In the example shown, the blue fabric is the sleeve. The two white bias strips are the inserts. The two bias strips when sewn together and pressed around the raw edges of the red and blue fabric finish at 5/8-inches wide each. The white bias fabric is cut 4 times the finished width. Example: 4 x .625 (5/8-inches) = 2.5-inches wide. You will need a 2.5-inch…

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  1. cocogone September 28th

    This is a good idea in theory but not in practice. I keep my clothes for a long time and in my experience bias tape disintegrates long before linen or other natural fabrics.

  2. LOUISE CUTTING September 28th

    You are not using bias tape, but fabric cut on the bias. The illustration in the technique has three different colors of linen to show the steps. The technique could be sewn in all the same colored fabrics...think strips, a small plaid or a linen weave...the bias insert would show off all your work.

    Sincerely, Louise Cutting

  3. User avater SeriousSewing September 28th

    This is a great idea for using up scraps of fabric that's already cut on the bias. Cuffs don't take up much fabric. This would add an interesting touch to a collar too.

  4. autumnwind3 September 28th

    You know, I never thought of this. It would certainly make a nice embellishment. But, given the slightly "stretchy" nature of fabric cut on the bias, I'm wondering if it might also be useful in areas like the elbow of a close fitting sleeve where a little extra movement would be helpful. Hmmm... possibilities!

  5. Certia September 28th

    Absolutely a genius idea from a genius sewer! Louise Cutting has the most fabulous, useful and brilliant sewing techniques.

    I must try this sometime, and of course this opens up all kinds of possibilities!!

  6. Bother September 28th

    I would think you would not want to put this strip at the elbow or any other stress point. Seems to me that a bias strip at the elbow is going to get very baggy after a while and you'll end up with a permanently stretched spot. You could prevent this by underlining the sleeve in one piece, I think.

  7. tissy September 28th

    LOVE this! Think of adding a bias band with embroidery or a several bias bands with tiny lace peeping out. This I will have to use. Excellent!

  8. ganesha September 28th

    It is unfortunate that your example did not use a fabric which would better illustrate your idea. A small plaid would have shown it well. It does indeed look like bias tape in your example. Not really a great idea.

  9. DianeWilson September 28th

    I think this is a unique idea. I think the criticism that it would stretch is not relevant because you have two straight grain pices essentially stitched together. The criticism that bias tape woudln't be good, make your own. Especailly if you are using a plaid, you would have to. I do agree that the images are a bit confusing, but if you read the directions along with it, Loise gives a very complete picture. Thank you for sharing this.

  10. User avater Kukana September 29th

    Love this idea! And wouldn't it be cute to embroidery a small motif on a bias strip and use faggoting to connect it? I got about 12 ideas that ran through my head when I read this article. I love Louise Cutting, she is full of really great ideas and techniques. Keep them coming!

  11. whoneedlesthis September 29th

    Louise, thankyou for once again providing a brilliant solution to a common problem.
    I don't understand the posters who think that bias will stretch if it is already stitched to a straight-grain edge, but they will learn in time to trust you.
    I am thinking this would also be a way to effectively lengthen sleeves on a purchased garment. By using the bias to join the edges of the garment fabric and the lining fabric, and pressing the bias to the inside, like a false cuff.
    Please continue to share your genius with us!!
    Jean Morgan

  12. Villa_for2 October 4th

    Thank you for the lesson today: Embellishments, Carla's Opera Coat
    I've printed out page 4: Gusset and snaps, page 7: Replicate of closure, page 6: Hair canvas and its interesting roll lines.

    I will experiment with that gusset sleeve on the bias. I appreciate quality and excellent designs.

    I once found a terrific princess cut linen suit at a consignment store here in California. It was a salmon, short sleeved jacket and straight skirt. It was one size too small so I used the, too short, skirt material to enlarge with a gusset at the side. (My friend Ione Holzman did the work, she use to work for Edith Head.) I've had it ten years and it goes with all my fall colors, brown or tan skirts and printed blouses. An unbottoned jacket makes you look slimmer, yet professional, with its straight lines and sharp tailored collar. I curve in the sides of my other jackets, if they are not princess cuts, which has a slimming effect. (Chanel's ideas!) Sincerely, Virginia

  13. User avater EvaDress October 19th

    While I have not used bias insets, I have long used double bias binding as my signature way of detailing the bottom edges of skirts, flounces, jackets and sleeves.
    I have also used the double bias binding to make extra length in skirts and sleeves.
    Thank you, Louise. Your presentation here also lends to a marvelous detailing opportunity I certainly will like to try in future.

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