billsides,

I guess I'm still a little confused. The fabrics I use in my solid and camo kilts range from 13oz for the Polyester/Cotton blends up to 18oz for the Winter weight 100% Cottons.

I have no knowledge of any 9oz fabrics used by N. American kilt makers. There are the retailers of kilts made elsewhere in the world that use the extreme ends of the Acrylic ranges. These can be a light as 6-7oz. Their heavy-weights range from 10-12oz.

P/V as woven by Marton Mills is 12oz.

The weight of the lightest Wool Tartan fabrics available from the big kilt fabric weavers is 10oz. Some weavers do sell lighter fabrics but it is mainly used for housewares and accessories.

Could you please let us know who or where these 9oz fabric kilts you refer to are.