A roll line is the point at which a lapel on a coat or dress folds out, adding twill tape to a roll line is a couture technique that adds a little structure and stops it from sagging over time. It’s particularly useful for coats that get a lot of use and on fabrics that might ease a little over time. Or simply if you want to upgrade your sewing!
In this tutorial Becca talks you through this neat and deceptively simple technique!
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How to add twill tape to a roll line