When it comes to altering the size of a suit jacket or blazer, there are some general guidelines to keep in mind. While it’s possible to alter a jacket to be smaller, there are limitations to how much you can alter it without compromising the overall fit and structure.
The rule of thumb is that you can typically go down two sizes at a maximum. However, it’s important to note that going down two sizes may not always be feasible or result in a satisfactory fit. In fact, a safer option is to go down only one size from the original jacket size.
The reason for this is that when a jacket is too large, it can not only be loose around the body, but it can also have oversized shoulders. Altering the shoulders of a jacket is a more challenging and complex task, often requiring significant modifications that can affect the overall balance and proportions of the garment.
To give you a better understanding, let me share a personal experience. A few years ago, I purchased a suit jacket that was one size too large for me. While I initially thought I could simply have it altered to fit me perfectly, I soon realized that the shoulders were also too large for my frame. The tailor explained that altering the shoulders would result in significant changes to the jacket’s structure and overall appearance, which might not yield the desired results.
In the end, I decided to go down only one size and have the jacket altered accordingly. This option allowed the tailor to make adjustments to the body of the jacket while still maintaining the integrity of the shoulders. The final result was a better fit, although not as perfect as it would have been if the jacket had been the correct size from the start.
It’s worth mentioning that the ability to alter a jacket also depends on the specific construction and design of the garment. Some jackets, especially those with more structured shoulders, may be more difficult to alter without compromising their overall look and fit. On the other hand, jackets with more natural or unstructured shoulders may offer more flexibility for alterations.
While it is possible to alter a suit jacket or blazer to be smaller, it’s generally safer to go down only one size from the original size. This allows for adjustments to the body of the jacket while minimizing the risk of compromising the shoulders. However, it’s important to consult with a professional tailor who can assess the specific jacket and provide expert advice on the best course of action for alterations.