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Excellent

Material Deep Dive

Cupro

Cupro scores 90/100 because it converts cotton linter into a biodegradable regenerated fibre with low estimated carbon intensity and modest process water use when produced in closed-loop systems.

Regenerated

Virgin

End of Life

3 months

100/100
Chemical Use

Low

80/100
Pollution

Low

80/100
Water Usage

800 L/kg

96/100
Carbon Footprint

1.2 kg CO₂/kg

93/100
Considerations

Uses copper and ammonia in processing—needs careful environmental controls

Global supply is concentrated with few major producers

Environmental claims depend on sourcing from certified modern facilities

Limited recycling options at end of life

Strengths

Made from cotton linter (a by-product), so uses waste material

Fully biodegradable with no microplastic concerns

Low water use and carbon footprint when properly produced

Production recovers and reuses solvents in a closed-loop system

Carbon Footprint Analysis

93/100

Cupro produces approximately 1.2 kg CO₂-equivalent per kilogram of fiber.

The Data

Carbon Footprint

1.2 kg CO₂/kg

FSI Carbon Score

93/100

Sources: Higg Materials Sustainability Index, Textile Exchange Preferred Fiber Report

Sustainability Breakdown

Microplastic risk

None

Care level

Delicate

Available certifications

Recycled Claim Standard (RCS) 100, OEKO-TEX Standard 100, ISO 14001, Eco Mark

Key properties

silky, soft, breathable, moisture-wicking, antistatic, biodegradable, compostable, hypoallergenic, drapes well

Common uses

suit linings, dress linings, blouses, dresses, skirts, sarees, dupattas, light:contentReference[oaicite:36]{index=36}rie, nightwear

Also known as

Bemberg, cuprammonium rayon, cupra, ammonia silk, copper silk

Cupro quick guide

Last updated: February 2026

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