17 Common Jacket Alterations Shown Before and After – ISOT Bonus Lesson 34 – Part 1 – Traditional

This lesson shows 17 jacket fitting alterations on the Traditional jacket, with the fitting problem, pattern correction and before-and-after result shown in sequence. Reza explains how jacket fitting can become confusing because one alteration can change the balance, hang, shape or movement of another part of the jacket. The purpose of this lesson is to make the fitting process clearer by showing each fault, the correction made to the pattern, and the visible result on the actual jacket. This is not just a list of common jacket alterations. It shows the logic behind the fitting room: how to read the problem, how to decide where the correction belongs, and how pattern changes affect vertical balance, horizontal balance, seam position, surface shape, silhouette, armhole movement, sleeve orientation and sleeve size. In this lesson, you will see: • How seam allowance, inlay and sewing lines work during fitting • How the grid principle helps with pattern correction • Five bespoke jacket fitting principles • 17 jacket fitting alterations on the Traditional Model • How each fitting problem is corrected on the pattern • How balance, silhouette, armhole, sleeve and surface shape are altered • Before-and-after comparisons of the fitted jacket This is ISOT Bonus Lesson 34 Part 1 for the Traditional Model. It is the first part of the fitting-room sequence, showing the fitting problems, pattern corrections and results before the paper pattern is updated in Part 2. ➤ GET YOUR PURPLE