Marton Mills Poly/Viscous is their Balmoral line. It can be found on their website under the schoolwear tab.

Or follow this link;

http://www.martonmills.com/range/5/list/3

You can purchase direct but the best way is to contact either Rocky at USA Kilts, Pete at Canadian Casual Kilts or me at Freedom Kilts.

We all have commercial accounts with them and order regularly. This should save you the hassle of shipping, customs and duty.

Rocky probably has it in stock.