Step 2: Interlining or interfacing is used in nearly all neckties and is hidden between the layers of the ties outer shell. Brushed-wool interlining helps create and maintain the shape of the tie.
Manufacturers of cheap neckwear often skimp on the interlining and use a synthetic lining instead of wool, resulting in ties that are either paper thin, stiff as a board or curl from regular daily use.
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