I do not know how well silk would do, but if I were to use silk I would use raw silk. My big experiences with raw silk is in making pre-18th century shirts and SCA style fencing armor. My experience there is that it wears like iron. In field testing 4 layers of raw silk seam to be able to resist 500-800 newtons of concentrated force. other than that is is extremely comfortable.

As to kilts, I have made three and they were all lined with linen. The one I still have is around 25 years old and I have still to need to replace the lining.

I hope that helps.

Stoff