What is Modal Fabric and Can It Be Sustainable?

Modal is a semi-synthetic fiber known for its softness, breathability, and impressive moisture-wicking properties, making it a popular choice for lingerie, activewear, and other comfortable clothing. It’s also durable—modal is resistant to wear and tear, and it can be machine washed and tumble dried without shrinking or losing its shape. Because of these qualities, many sustainable fashion brands have turned to modal as an eco-friendly alternative to traditional viscose. However, while modal has its benefits, it’s not always the most sustainable choice. Let’s dive into why—and how—modal can be more eco-friendly.

The Origins of Modal

Developed in Japan in 1951, modal was originally created to be a stronger version of traditional rayon. Like rayon, modal is made from cellulose fibers extracted from wood pulp, usually from beech trees. The process involves chemically breaking down the wood to create a versatile fabric that feels incredibly soft against the skin.

While modal offers great functionality, it’s not inherently sustainable. The production of modal shares two main environmental challenges with viscose: the risk of deforestation and the use of harmful chemicals.

1. Deforestation Risks: Traditional modal production can contribute to the destruction of native forests, especially when trees are harvested unsustainably. This loss of forests harms biodiversity and contributes to climate change.
2. Chemical Processing: Another major issue is the chemical-heavy process used to turn wood pulp into fabric. Like viscose, modal production often involves toxic chemicals and heavy metals that, when not properly managed, can pollute waterways and harm both the environment and workers’ health.

Video credit: Lenzing Group

How to Buy Modal Sustainably

If you’re looking to make sustainable fashion choices, opting for certified modal fabrics is key. Here’s what to look for:

• TENCEL™ Modal: This is the gold standard for sustainable modal. Look for brands that specify they use TENCEL™ Modal, as this guarantees that the modal has been produced with eco-friendly practices.
• Certifications: Check for certifications such as OEKO-TEX®, which ensures that the fabric has been tested for harmful chemicals, and FSC (Forest Stewardship Council) certification, which ensures that the wood is sourced from responsibly managed forests.

Conclusion: Modal Can Be Eco-Friendly

While traditional modal production has its environmental drawbacks, advancements in sustainable practices—especially through companies like Lenzing—are making modal a more eco-friendly fabric. By choosing TENCEL™ Modal or other sustainably produced options, you can enjoy the comfort and durability of modal without contributing to deforestation or pollution. As with any fabric, the key is to research brands and make informed decisions that align with your values.

Need help curating your sustainable wardrobe? Sparkpick’s stylists are here to assist! Book a free consultation and start your journey toward eco-friendly fashion today.