top of page

Very Poor

Material Deep Dive

Virgin Polyester

Virgin polyester scores 13 because its fossil-based production has high climate impact and its water footprint is dominated by very large grey-water pollution burdens in petrochemical supply chains.

Synthetic

Virgin

End of Life

Not biodegradable

20/100
Chemical Use

Very High

20/100
Pollution

Very High

15/100
Water Usage

60,862 L/kg

9/100
Carbon Footprint

14.2 kg CO₂/kg

10/100
Considerations

Made from fossil fuels with one of the highest carbon footprints of any fibre

Manufacturing creates significant water pollution

Sheds plastic microfibres with every wash

Won't break down naturally—persists for centuries

Most ends up in landfill rather than being recycled

Strengths

Durable and holds its shape through heavy wear, extending garment life

Affordable and widely available

Requires no agricultural land or water for growing

Carbon Footprint Analysis

10/100

Virgin Polyester produces approximately 14.2 kg CO₂-equivalent per kilogram of fiber.

The Data

Carbon Footprint

14.2 kg CO₂/kg

FSI Carbon Score

10/100

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

Sustainability Breakdown

Microplastic risk

High

Care level

Easy

Available certifications

OEKO-TEX STANDARD 100, OEKO-TEX STeP, bluesign Approved, ZDHC MRSL programs (process-level)

Key properties

high strength, wrinkle resistance, quick-drying, dimensionally stable, abrasion resistant, colorfast, low-cost, lightweight

Common uses

sportswear, activewear, t-shirts, fleece, fast-fashion apparel, linings, outerwear, swimwear, intimates, home textiles

Also known as

PET, polyethylene terephthalate, virgin PET, conventional polyester, fossil-based polyester

Virgin Polyester quick guide

Last updated: December 2025

How we scoreScore your garment now
bottom of page