Men's Dress Shirt (cotton)

Material Composition Assumptions

A typical men’s dress shirt contains approximately 150 grams of cotton fiber representing 100 percent of the material composition. This assessment assumes conventional cotton cultivation using synthetic fertilizers and pesticides. Additional materials including buttons, labels, and thread contribute less than 5 percent of total product weight and have minimal impact on the overall carbon footprint compared to the primary cotton fiber content.

Manufacturing Geography

China dominates global cotton shirt manufacturing due to established textile infrastructure and proximity to cotton growing regions. Chinese textile facilities operate on a carbon-intensive electricity grid with an intensity of 555 gCO2/kWh, significantly influencing the manufacturing phase emissions profile. The concentration of spinning, weaving, dyeing, and cutting operations within integrated industrial complexes provides production efficiency but creates substantial scope 3 emissions from grid electricity consumption during energy-intensive wet processing stages.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	555 gCO2/kWh	52	Baseline
Bangladesh	632 gCO2/kWh	56	+8%
Vietnam	512 gCO2/kWh	49	-6%
Turkey	418 gCO2/kWh	45	-13%
India	708 gCO2/kWh	61	+17%

Provenance Override Guidance

1. Submit actual electricity consumption data from spinning, weaving, dyeing, and finishing operations with corresponding grid emission factors or renewable energy certificates for the production facility location.

2. Provide cotton sourcing documentation specifying organic certification, fertilizer application rates, or rainfed versus irrigated cultivation methods to adjust agricultural phase emissions.

3. Supply transportation records detailing shipping distances and modal choices from cotton farm through final distribution to calculate specific logistics emissions.

4. Document any on-site renewable energy generation, cogeneration systems, or energy efficiency measures implemented at the manufacturing facility.

5. Provide wastewater treatment specifications and chemical usage data for dyeing and finishing processes to refine wet processing emission calculations.

Methodology Notes

• The CCI score represents cradle-to-grave lifecycle emissions including cotton cultivation, textile manufacturing, consumer use phase, and end-of-life disposal across an assumed 50-wear lifespan.

• Scope 3 dominance reflects the distributed nature of apparel supply chains where agricultural inputs, consumer washing behavior, and manufacturing electricity consumption occur outside direct operational control.

• Functional unit assumes standard dress shirt dimensions with typical consumer care patterns including machine washing in warm water and machine drying for each wear cycle.

• Assessment excludes packaging materials, retail infrastructure, and potential recycling credits due to limited data availability and low material recovery rates for cotton textiles.

• Consumer use phase emissions depend heavily on regional electricity grids, washing frequency, and household appliance efficiency creating significant geographic variation in total product impact.

• Cotton cultivation impacts vary substantially based on irrigation methods, pesticide application rates, and fertilizer intensity across different growing regions and farming practices.