Mipi,

I think you may be a bit confused with the words or terms you are using.

"Stabilizer" = a thin (think bedsheet) , narrow (2", 5cm) strip of any non-stretchy fabric that is sewn into the back of the Kilt from one buckle over to the other buckle to take the stress in the pleated area of the back of the Kilt.

"Hair Canvas" = A wide (8", 22cm), long (the distance from one strap all the way to the opposite strap) interfacing that takes the stress from the straps and transfers it evenly throughout the kilt to prevent unsightly puckers.

The Stabilizer is just a small strip of cloth while the Hair Canvas is a rather large and long piece of interfacing. They do a similar job of absorbing the stress of buckling on the Kilt but one is from buckle to buckle and the other is all the way from strap to strap.

The thing to remember is that you are going to wear not only the kilt but the interfacings. The interfacings need to be able to breath. Any interfacings that are made from synthetic materials or that is too thick could cause you to perspire heavily. You want interfacings that do not stretch but will still breath.

As others have said when you strap on the Kilt you are actually wearing the interfacings. The Tartan fabric with all your fine hand stitching floats over the interfacing without pulling on the stitches.

Even a Kilt made from P/V, Acrylic, or even Poly/Cotton needs some sort of interfacings to evenly distribute the stress of wearing the Kilt.