Hair canvas

[Tartan Hiker]

BUT...

If you are using a washable blend fabric, then don't use hair canvas. It isn't washable.
Use a heavy cotton canvas instead. Preshrink it by washing in hot water and drying on high, then press and sew.

Nylon strapping would be too much, IMHO. Not very breathable and mighty thick...sounds hot and uncomfortable to me.

[Kiltman]

BUT...

If you are using a washable blend fabric, then don't use hair canvas. It isn't washable.
Use a heavy cotton canvas instead. Preshrink it by washing in hot water and drying on high, then press and sew.

Both the stabilizer and the canvas are integral parts of a kilt, don't leave them out.

[Tartan Hiker]

Both the stabilizer and the canvas are integral parts of a kilt, don't leave them out.

I wasn't implying that they should be left out. I was saying that if he wants to be able to wash his kilt, as it is being made of a washable fabric (wool/poly blend), then it would be a mistake to use a non-washable material in the internal structure of the kilt.

[Carolina Kiltman]

I have to agree with what has been said. Most hair canvass is not washable. But (and I don't remember where she got it) my wife bought a bolt of a washable "hair canvass" made of nylon and polyester, woven, not felted like Pellon (tm), for use in the liturgical vestments she was making at the time.

Yes, regular canvass can be used, or any other firm non-stretchable fabric. Of course it needs to be pre-shrunk if you are going to wash the finished garment. Since you have experienced seamstresses in the household, just explain what it is that you are needing the interfacing for.

Sounds like your progress is good!