A coat is the most consequential clothing purchase most people make in a given year. It is worn more days than almost anything else in the wardrobe, it is the first thing people see, and it takes more physical stress than a shirt or a pair of trousers. Buying a coat that lasts a decade requires asking a different set of questions than buying one that looks good in the shop.
01 Fabric weight and construction
The weight of the outer fabric is the single most reliable indicator of longevity. For a wool coat intended for daily wear, you want to be above 500gsm. Below that, the fabric will thin at the elbows and collar within a few years of regular use. Boiled wool is more forgiving than woven wool at the same weight because the felted structure distributes stress more evenly.
Construction quality is harder to assess quickly, but there are a few things you can check. Turn the coat inside out and look at the seam allowances. Wide seam allowances, at least 15mm, mean the coat can be let out or taken in by a tailor without compromising the seam. Narrow seam allowances are a cost-cutting measure that limits future alterations.
02 Silhouette and fit
A coat silhouette that is tied to a specific fashion moment will look dated within three to five years. The silhouettes that last are the ones that have been around long enough to have stopped being fashionable and started being classic: the field coat, the chore coat, the single-breasted overcoat. These are not exciting choices, but they are durable ones.
Fit is more important than silhouette. A coat that fits well in the shoulders and chest will look right regardless of the length or the lapel width. The shoulder seam should sit at the edge of your shoulder, not on the arm. If it does not, no amount of tailoring will fully correct it.
03 Lining and hardware
The lining of a coat takes more wear than the outer fabric in some respects, because it is in constant contact with your clothing. A lining made from a natural fibre, cotton or silk, will last longer and feel better than a polyester lining. It is also easier to repair if it tears.
Hardware, meaning buttons and zips, is worth examining. Corozo nut buttons are more durable than plastic and can be replaced individually if one breaks. Metal zips outlast plastic ones. These are small details, but they are the things that fail first on a coat that is otherwise well made.
We are happy to walk through any of these questions with you in the shop. Bring the coat you are considering, or come in and we will show you what we mean on the pieces we carry.