My Tailored Blazer Project Continues: Preparing the fabric and interfacing(s)

If like me, you’ve ever dreamed of having that perfectly tailored bespoke suit made precisely for your own body, you’ve probably wondered where you might procure one. Earlier this month, the BBC featured a young London entrepreneur and tailor named Daisy Knatchbull who has opened the very first all-female tailor shop on the storied Saville Row in London. You probably know that Saville Row has, up until now, been exclusively focused on men’s tailoring. But not any longer. The story transported me…

But, did you notice how much such a suit will set you back? Enter an opportunity for all of us who sew. We can create these bespoke suits for ourselves at a fraction of the cost – but a lot of sweat equity it has to be said! And that’s what this project I’m in the middle of is all about. I’m doing my own self-guided course on tailoring.

In the last post, I created and altered the muslin. By the time I was finished with that, I had a well-fitting pattern (I hope) and was ready to finally get that fabric out and begin to cut.

You might remember that the fabric I’ve chosen for this project is a silk and cotton tweed and to say that it frays would be a serious understatement. This is important to know if (a) I want the seam allowances to be accurate, and (b) I want to maintain my sanity. So, as I begin to lay out and cut the fabric, I have to keep this in mind. First, I try not to handle it too much and second, later on, I’ll actually take the time to run a machine stitching line down all important edges. It’s worth the time. But back to the cutting out.

There are a lot of moving pieces in a tailored jacket that has welted flap pockets, side panels and two-piece sleeves. And since this Vogue 9099 pattern is a Claire Schaeffer couture teaching one, it has numerous pieces.

Instead of having to create your own lining and interfacing pattern pieces, they have been provided, so I must separate out the ones that are just for the fabric, the ones that are cut from fabric and interfacing, and the ones (actually there is only one) that are both a fabric and lining pattern. I’ll deal with the lining later – I can only cope with so much fraying fabric at one time. The lining is silk charmeuse and I’m well aware of that baby’s tendency to fray into super-thin silk filaments. Later.

This isn’t the most expensive fabric I’ve ever used (that would have been Italian cotton for a shirt for my husband), but it wasn’t cheap, either. So, I take a moment to ensure that I’m relaxed and calm before I attack it with the shears.

Once I have that done, I need to cut the interfacing pieces because there will be no sewing of this project until the interior body and collar shaping are done.

I’ve never worked with hair canvas before, but since this one is fairly thin, it’s easy to work with and thankfully does not fray! I’ve chosen this light-weight canvas so that I don’t change the character of the fabric too much. I want shaping, but I want soft shaping.

According to the pattern instructions, there are a few pieces of interfacing that need to be cut from “batiste.” I thought I knew enough about fabrics to know what batiste is, but this didn’t make a whole of sense to me especially when I noted that the batiste was to be used to interface the undercollar and pocket flaps.

So, I go to my favourite textile bible and find out that I am right: batiste is lawn. In fact, “lawn” is called batiste when it is made from cotton and called “handkerchief linen” when made from flax. Bottom line: it’s very thin, and not at all what I would have thought ought to be interfacing for an undercollar – but it might be right for pocket flaps. Nevertheless, I decide that the decision of what to put where could come later. I follow the instructions and cut it out. However, I don’t have batiste lying around, but I do have silk organza which has many of the same characteristics of batiste (sheer and lightweight and able to hold its shape being chief among them), so I decide that silk organza would be an even better alternative. We’ll see.

With the pieces all cut out, it’s time to mark everything – carefully. One thing I do know about making jackets – traditionally-tailored or Chanel-style – the marking needs to be accurate and plentiful.

My favourite kind of marking for tweed uses Japanese cotton basting thread for lines and tailor’s tacks. Remember what I said about fraying? I could have handled this by using couture methods – cutting the seam allowances off the pattern, laying everything out in a single layer, rough-cutting at an inch or more and finally thread-tracing the seam lines. I choose not to do this. I cut the pieces with the regular seam allowance then carefully measure my way around the periphery of every piece adding thread-traced seam allowances. This should keep me on the right track when I get to the side seams which are the most important ones for fitting this jacket for me.

• 

• 

• 

• 

Of course, I have to figure out how to thread-trace the pieces that are cut in a double layer without removing and replacing tissue pattern pieces multiple times. I decide to use the technique demonstrated in the video below for the first step, but I really hate all those tails. That’s why I then do running stitch lines connecting the tails and remove all the annoying little bits of thread. (No, I didn’t do that on the seam lines on the periphery – I measured them all as I did my running stitch. See my little green sewing gauge above.)

It is after this step that I decide to machine stitch around all-important seam allowances (which will give me the right fit in the end) to reduce fraying. It is my sanity saver.

Marking the interfacing is also important and is much easier. I use tracing paper and will use one of those pens whose markings disappear with heat and steam. (I’ve just acquired a couple and am tickled at how well they work – unless, of course, you inadvertently steam away your markings before you need them as I have done several times).

Now that it’s all cut out (except for the lining) it’s time to learn as much as I can about things like “pad-stitching” and other aspects of what goes into the shaping of the interior of the jacket. I’ve started practicing…

What I’m learning is that there are as many “best practices” as there are experts in the field of tailoring. I’m going to try to figure out whose method works best for which aspects of the project – I’m not planning on following the pattern instructions to the letter (sorry Claire Schaeffer!).

I’ll share that with you next.