Using Stretch Interfacing

DSC03027Anyone else guilty of not always using the right tools for the job? Trying to get away with not always using the right needle and instantly regretting it? Making a knit pattern work for woven? I am totally guilty of not always using the correct interfacing and sometimes I get away with it – sometimes I cause myself a world of pain! Anyone else guilty of this?

Interfacing is one thing that I do like to have a little stash of. A few different types so I don’t have to go shopping each time I start a new project. This does often mean I am reluctant to go out to buy some when I find I don’t actually have what I need and confession time, I’ve never used knit interfacing before!!


I have made A LOT of knit garments and most of them do not call for interfacing. In the past, when they did call for stretch interfacing, I’ve examined the project and decided to risk using non-stretch interfacing. This hasn’t come to bite me YET but has been luck as much as anything else. For the Kielo dresses, I chose to use non-stretch interfacing on the straps because I thought if they did stretch they would probably keep going round me loads of times and possibly stretch out of shape. For the Strathcona Henley, the placket needed interfacing, but I deliberately interfaced it with non-stretch interfacing because I thought it would make a neater placket if it weren’t stretching (and also the placket can be made out of a woven fabric so I knew it would work).


Up until now, I have managed to get away with not using stretchy knit interfacing but when asked if I would like to review a Vlieseline product, I knew that I should finally give it a try! I had chosen to make Simplicity 8342 and the straps call for knit interfacing.

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I was sent some of the Vlieseline H609 which is new to the range. It is different to any interfacing that I’ve ever used before, it’s very finely knitted and feels a bit like nylon tights. I was surprised to find that it is only stretchy widthways so there IS a grainline which I have never had with interfacing before. This wasn’t a problem though and I just made sure I cut out the strap pieces the right way round.


It is fusible interfacing and it stuck to the cotton jersey I was using really well and I am super impressed with how stretchy it stayed! I am confident that if I had tried to use woven interfacing for these straps they would have been falling off my shoulders all the time. Using interfacing with stretch allowed me to make them with a small amount of negative ease that will keep them tightly on my shoulders!

I am resolved to try to be better at using the right interfacing for the job and am super impressed that knit interfacing truly is stretchy and remains stretchy after fusing to the fabric. From now on I will certainly remember this interfacing if I need to interface anything on a knit garment!

To find out more about Vlieseline products, please visit;
For stockist information, contact Vlieseline –

Disclaimer: ⭐️Interfacing was provided free of charge in exchange for a review. All opinions are my own, and I definitely wouldn’t recommend something I wouldn’t use again!



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