Most people suspect they own too many clothes, but they aren’t sure exactly what the “right amount” is. Recent wardrobe studies, in which researchers literally peek inside peoples’ closets, show the scale of the problem is far greater than most of us imagine.

Sixty years ago, the average person owned about 40 garments.

Today, that number has more than quadrupled, with a recent study revealing these numbers continue to trend upwards. The typical wardrobe now contains an average of 199 major pieces. Even more striking: 25%–50% of these items are languishing in the back of drawers and rails.

Our hidden clothing footprint

Research tells us this is not just a clutter issue — it’s a carbon one. Every garment carries a sizeable environmental footprint long before it reaches a hanger, including from fibre production, spinning, weaving, dyeing, cutting, sewing, packaging and global transport.

A jacket that ends up as fashion waste is more than a label and price tag. It’s the sum of all the resources and........

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