Flat Lining — Essential Foundation Technique

Flat lining is one of the most important construction techniques in ballet costume making. It is the process of backing your fashion fabric with a sturdy lining so the two layers function as one strong, stable unit throughout construction.

This 4-page, photo-supported guide walks you step by step through proper flat lining for ballet costumes, focusing on grain accuracy, fabric stability, and long-term durability—all critical for costumes that must withstand performance, cleaning, and alterations.