Monday, July 2, 2012


I am back to the bias stays/facing theme as I used bias stays and bias facings on my flapper dress.

{edit} If you are new to this - thanks, Oona, for reminding - stays are used to stabilize seamlines or garment edges to prevent stretching, not to be confused with the waist stay.

 It is probably one of the more fascinating subjects for me since stays belong to those invisible but crucial techniques in couture sewing. And once you dig into this topic you will uncover quite a few options. Who knows what to use? and why?... After taking several classes with Susan Khalje, making quite a few couture garments myself, and researching a range of available resources I began to understand the choices; and so, today, I want to share my findings with you.

I don't use fusible stays, so I won't cover those. But I hope this brief overview of sew-in stays will help you save your time when looking for the most appropriate stabilizing choice. 


Availablility: Black or white, polyester (less bulky) or cotton.

Width1/4" is preferred for stabilizing

Characteristics: straight grain, stabilized seams will never stretch, will behave equally well after washing

Fabric suitability: heavy- to mediumweight woven fabrics

Fit: close fit, tailored styles

Support: only on straight edges or seams, such as waistline, or top edge of the strapless bodice, etc.


Availablility: fashion fabric selvage, can be made of china silk, silk organza, silk chiffon or cotton voile. Chose the stay to match the weight, the color and draping characteristics of your fabric. Stays cut on lengthwise grain can also be used, as well as crossgrain stays, but they are not as sturdy as the selvage, and, in addition, the crossgrain-cut stay will have some stretch. If you do use stays cut on lengthwise or crossgrain, do press them and stretch while pressing to remove all the stretch. I explain the reasons below, under bias-cut stays.

Width1/4" is preferred for stabilizing

Characteristics: firm support, perfect match in color and weight because it is cut from the same fabric, minimum bulk

Fabric suitability: sheer or delicate woven fabrics, medium-weight fabrics, bouclé.

Fit: any styles

Support:  straight edges or seams, such as waistline, or top edge of the strapless bodice, etc.


Availability: purchase braided elastic (gets narrow when stretched)

Width: approximately 1/4"(0.5 cm)

Characteristics: flexible support, allows to move, but returns to shape; bulky, so cannot be used on light-weight fabrics.

Fabric and Style Suitability: medium-weight fabrics, especially on dresses and tops with plunging necklines; also used for armholes.  

Fit: close fit

Support: deep necklines, armholes, and similar applications. Here I want to add that on those deep necklines you can always consider using boning to keep the neckline close to your body.  Elastic can keep the neckline taut, while boning will prevent the garment from revealing too much when you move. More on it later.

Application: it is applied using the catchstitch, which encases the elastic on both sides without piercing it - elastic should be able to move. The elastic is then pulled up to the desired length and securily sewn to the garment at the end.


Availablility: 100 % percent nylon; in black, white or ivory; bias or straight grain.

Widthavailable in 5/8"

Characteristics: light support, sheer and lightweight, minimum bulk,

Fabric suitability: sheer or delicate woven fabrics

Support: straight or slightly curved seams, prevents seam slippage.

Notes: Susan Khalje also recommends using bias-cut tricot to stabilize scalloped seams on knit fabrics.


on the top, the strip after pressing, stretching and steaming out the bias;
below, initial width. 
Availablility: DIY, I use a matching silk organza to make this bias stays because organza and sturdy and sheer at the same time. Bias stays need to be cut on true bias and then stretched and presses until all the stretch disappears. (Read my earlier post on bias stays)

Width1/4" - 3/8" 

Characteristics: light support, perfect match in color and weight because it can be cut from matching silk organza, minimum bulk, minimal fraying. The width of the strip reduces to almost a third of the original after pressing, the length increases, and the strip does tend to return to original shape if moved. It's simple mechanics, and so that's why you remove all bias with pressing - the strip can only get slightly shorter during the wear - making the stay perfect for necklines and armholes. In this, this stay works similarly as the elastic stay mentioned above. Finally, because of the bias the stay creates a softer edge (or roll) where it is applied, which I personally like more. Straight-grain stays, or folds produce a crisper edge when pressed. 

Fabric suitability: sheer or delicate woven fabrics, knits, lace.

Fit: any styles

Support:  shaped seams on wovens, straight and shaped seams on knits, seams on bias-cut garments, especially zippers, etc.


I tend to use organza selvage for straight/ on-grain edges and shoulder seams. If seams are cut on the bias (V-neck, for example), especially on the lightweight fabrics, I prefer using bias stays, also from silk organza.


At this point I cannot link to tutorials on how to apply this different type of stays - I am working on the bias stay tutorial - but you can find some information in the following resources.

Readers, do you use different stays in your sewing? What were your biggest stay frustration moments? Are you interested in a tutorial on how to apply any of those stays? 


  1. Wonderful blog. I had never thought of ironing out bias tape for stays, but can definitely see the possibilities for necklines. Thanks for the great references.

  2. um, can i be interested in knowing what a stay is in the first place? we're talking waist stays, yes? obviously i'm off to google, but somehow i couldn't resist parading my ignorance.

  3. I use fusible, muslin, organza and twill tape. My biggest frustration is not knowing which type of stays to use. For instance, I am always puzzled whether to choose self fabric or organza for necklines and armholes on delicate fabric? Having said that, your tutorial will be more than welcome.

  4. Wonderful information; thank you! And yes, I would be interested in hearing more :)

  5. This is very valuable information for me thank you so much. Any tutorials that you create will be very much appreciated.

  6. Late to answer here but oh yes, definitely interested in a tutorial of how to apply. That may be even more confusing than which type to use and where to use it!

  7. I just won a giveaway for $50 worth of twill tape that I have had no idea what to do with so I really appreciated this post. Though I still definitely feel like most of this is waay over my head, it is at least nice to know WHAT I can do with it. :) So thanks!

  8. When I make a lined garment, I just cut off the selvages of the lining and use them as stays where needed. It is always the right weight and colour that way. Always remember to stabilise zipper openings! Straight grain fusible works great for that, and it makes it so much easier to insert the zipper without having to worry about it stretching out.



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