The Spare Button Sewn Into The Seam

Clothes used to arrive carrying the materials for their own repair. A spare button stitched inside a seam is a small piece of evidence about how long a garment was expected to last.

The spare button was an admission about wear

Buttons are the part of a garment most likely to fail, because they take repeated stress at a single point and are attached by thread that abrades.

Matching a lost button afterwards is close to impossible, since dye lots and mouldings change and shops do not stock a specific manufacturer's fastening. Supplying one in advance solved that permanently.

Including it cost the maker almost nothing and signalled that the garment was worth repairing. A coat with no spare implicitly says the button is not expected to outlive the coat.

Seam allowances were left deliberately generous

A seam sewn well inside the edge of the fabric leaves material available for letting out. Tailored garments were cut with that in mind because bodies change and clothes were kept.

Trouser hems carried the same slack. A length could be shortened for one wearer and let down for another, which mattered when garments passed between siblings or across a decade.

Cutting close to the seam saves fabric on every unit produced, which is a meaningful saving at scale. The allowance disappeared because it cost money and only some owners ever used it.

Repair depended on skills held at home

Reattaching a button, taking in a waist or turning a collar were ordinary domestic competences. The garment's repairability only had value because somebody in the house could act on it.

Those skills were taught in schools and passed along in families, and they assumed a workbasket with thread, needles and the accumulated buttons of previous garments.

As the skills thinned out, the design features that supported them became invisible. A spare button in a seam is useless to a household with nobody who will sew it on.

Why the economics reversed

Repair competes with replacement. Once a new shirt costs less than an hour of somebody's time, mending stops paying for itself in any straightforward accounting.

Manufacturers respond to that by removing the features supporting repair, which reduces cost further and makes replacement more attractive still. The change reinforces itself in one direction.

Fabric weight moved the same way. Lighter cloth is cheaper and drapes acceptably, but it wears through rather than wearing in, so there is often nothing sound left to repair.

What survives at the expensive end

Spare buttons, deep hems and generous allowances persist in tailoring and in some workwear, where the garment is expected to be altered and kept for years.

Those features now read as markers of quality, which is a reversal. What was once a routine assumption about ordinary clothing has become a way of signalling that a garment is unusual.

The small bag of spare buttons attached to a new jacket is the last widespread trace of the older logic, and most of them are thrown away unopened.