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Moderate

Material Deep Dive

Polypropylene

Polypropylene scores 66/100 because its low water use and moderate cradle-to-gate carbon footprint are offset by high pollution/chemical risk, microplastic shedding, and non-biodegradability.

Synthetic

Virgin

End of Life

Not biodegradable

20/100
Chemical Use

High

30/100
Pollution

High

35/100
Water Usage

59 L/kg

100/100
Carbon Footprint

1.586 kg CO₂/kg

90/100
Considerations

Sheds plastic microfibres with every wash

Won't break down naturally—fragments into microplastics over time

Still made from fossil fuels

Production involves chemical processes that can pollute if poorly managed

End-of-life options are limited as most isn't recycled

Strengths

Low carbon footprint compared to many other synthetics

Uses very little water in production

Durable, extending garment life

Can be recycled where collection systems exist

Carbon Footprint Analysis

90/100

Polypropylene produces approximately 1.586 kg CO₂-equivalent per kilogram of fiber.

The Data

Carbon Footprint

1.586 kg CO₂/kg

FSI Carbon Score

90/100

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

Sustainability Breakdown

Microplastic risk

High

Care level

Easy

Available certifications

OEKO-TEX STANDARD 100, bluesign, ZDHC MRSL-conform processing

Key properties

lightweight, low density, hydrophobic, quick-drying, good thermal insulation, stain and moisture resistant, abrasion resistant, durable, chemically inert, low water footprint, relatively low carbon footprint vs other virgin synthetics

Common uses

carpets and rugs, carpet backing, upholstery fabrics, curtains, tablecloths, thermal underwear and base layers, sportswear and socks, nonwoven medical gowns and masks, disposable hygiene products, reusable shopping bags, geotextiles, filtration media, outdoor furniture fabrics

Also known as

olefin, PP fiber, polypropylene fiber, polyolefin fiber

Polypropylene quick guide

Last updated: February 2026

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