In the Know: What is Durable Water Repellent (DWR)?

What is Durable Water Repellent (DWR) and Why it Works for Athleisure Wear

Durable Water Repellent (DWR) is a coating added to fabrics to make them water-resistant (hydrophobic). DWR is commonly used in outdoor and performance wear, allowing fabrics to shed water, keeping the material lightweight, and speeding up drying time.

The technology behind DWR involves applying a treatment to the fabric that lowers its surface tension, causing water to bead up and roll off instead of soaking in.

There are various types of DWR treatments. Initially, many DWRs used perfluorocarbon (PFC) compounds, but due to environmental concerns, the industry is shifting towards more eco-friendly alternatives, such as short-chain fluoropolymers and non-fluorinated agents.

Key features of DWR include:

  • Water Resistance: This is the primary function of DWR, allowing textiles to resist moisture penetration.
  • Breathability: Unlike traditional waterproof coatings, DWR maintains the fabric’s breathability.
  • Durability: Over time and with wear, the effectiveness of DWR can diminish, but it can often be restored with washing and reapplication of the treatment.
  • Environmental Impact: Growing awareness and concern about certain DWR chemicals’ ecological and health impacts are leading to the development of more sustainable alternatives.

It’s important to note that DWR is not the same as waterproofing. While DWR-coated fabrics resist water penetration, they are not impermeable and may become saturated under prolonged exposure to moisture. DWR is often used with waterproof, breathable membranes (like Gore-Tex) in high-end outdoor apparel for enhanced moisture protection.


Table: Why DWR Technology Works for Athleisure Wear


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Michael Brito - Editor in Chief

ABOUT THE AUTHOR

Michael Brito

Michael Brito is the editor-in-chief for Athleisure Wear for Men (AW). He launched this site in 2024 as a hobby. He’s a TEDx speaker and leads global analytics for Zeno Group, an integrated communication agency. Connect with him on social media.

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