Raw material is the largest source of impact, with 30 to 50% of a garment's impact. Dyeing and finishing account for 15 to 30%, with a marked effect on eutrophication, and the use phase (washing, drying) up to 38%. Spinning and weaving represent 5 to 15%, garment manufacturing 5 to 15%, transport only 1 to 5%. For spinning and weaving, the country's energy mix matters much more than distance travelled. End of life also matters: worldwide, 87% of clothing fibres end up incinerated or in landfill.
Read the source article: Textile eco-design: a garment's LCA levers