In garment construction, (also known as flat lining) is a professional technique used to add structure and luxury to a piece without the bulk of a full lining.
Popular choices for underlining include silk organza for crispness, cotton batiste for soft structure, or muslin for general stability. 2. Underling in Pop Culture How to Sew an Underlining - Seamwork underling
It provides a surface for catching hand stitches (like hems or facings) so they don't show on the outside of the garment. In garment construction, (also known as flat lining)