Cotton Socks (pair)

Material Composition Assumptions

A standard pair of cotton socks weighs approximately 80 grams and consists of several key components that contribute to its environmental impact. The primary material is cotton fiber, which represents roughly 85% of the total weight at 68 grams. Synthetic dyes account for approximately 2% of the weight at 1.6 grams, while various processing chemicals including bleaching agents and fabric finishes comprise another 2% at 1.6 grams. Elastic components used in the cuffs and toe areas make up the remaining 11% at approximately 8.8 grams, typically consisting of elastane or rubber blends that provide stretch and shape retention.

Manufacturing Geography

Cotton socks are predominantly manufactured in China, which accounts for the largest share of global textile production capacity. The Chinese electrical grid operates at an average carbon intensity of 555 gCO2/kWh according to International Energy Agency data. This manufacturing location is favored due to the established supply chain infrastructure that spans from raw cotton processing through spinning, knitting, dyeing, and finishing operations. The concentration of these processes within close geographic proximity reduces transportation emissions between production stages while leveraging economies of scale in textile manufacturing.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	555 gCO2/kWh	43	Baseline
India	632 gCO2/kWh	47	+9%
Bangladesh	495 gCO2/kWh	41	-5%
Turkey	425 gCO2/kWh	38	-12%
Vietnam	512 gCO2/kWh	42	-2%

Provenance Override Guidance

1. Cotton sourcing documentation including farm location, cultivation methods, and organic certification status with third-party verification
2. Manufacturing facility energy consumption data showing renewable energy usage percentages and grid mix documentation
3. Transportation records detailing shipping methods, distances, and fuel consumption from raw material sourcing through final distribution
4. Dyeing and finishing process specifications including chemical usage, water consumption, and waste treatment methods
5. End-of-life program documentation showing take-back initiatives, recycling partnerships, or biodegradability testing results

Methodology Notes

• The CCI score represents cradle-to-grave emissions including cotton cultivation, textile manufacturing, transportation, consumer use phase, and end-of-life disposal
• Scope 3 emissions dominate the footprint due to agricultural inputs during cotton production and consumer washing behavior over the product lifespan
• The functional unit assumes a typical sock lifespan of 50 wash cycles before replacement
• Packaging materials and retail infrastructure emissions are excluded from the current methodology
• Consumer use phase calculations assume standard residential washing machine efficiency and regional electricity grid mixes
• Data gaps exist around specific chemical additives and their upstream production emissions