Optimising material use through garment engineering technologies can reduce or even eliminate waste. This will reduce the need for raw materials and related earlier processing steps, which will reduce carbon, water and waste impacts across the supply chain as well as costs.

For example, it is estimated that every kilogram of cotton saved at the t-shirt manufacturing stage equates to a 26 kg CO2e carbon saving [1].

1. WRAP, 2012, key data sources for calculation were Ecoinvent 7.3.3; Danish Ministry of the Environment, 2007, "EDIPTEX"; Allwood et al, 2006, "Well Dressed?"

Image credit: WRAP