| What it is | Textile odor-control treatment |
| How | Manages odor-causing bacteria/molecules |
| Options | Includes bio-based versions |
| Used on | Synthetic base layers, active apparel |
HeiQ Fresh is a family of textile odor-control treatments that keep fabrics smelling fresher by managing the bacteria and odor molecules responsible for body-odor smells, including bio-based options. Applied to synthetic base layers and active apparel, it helps gear stay fresh longer between washes — addressing synthetics’ tendency to hold odor compared with natural fibers like merino.
Fresher synthetics
An odor treatment competing with Polygiene, added to wicking synthetics to rival merino wool’s natural freshness.
Frequently asked questions
What is HeiQ Fresh?
HeiQ Fresh is a range of odor-control treatments applied to textiles, from the Swiss materials company HeiQ. It reduces the buildup of odor on fabrics — including bio-based versions that work without traditional biocides — so synthetic activewear and base layers stay fresher for longer between washes.
How does HeiQ Fresh stop odor?
Different HeiQ Fresh technologies work in different ways, generally by limiting the odor-causing bacteria that thrive in sweaty fabric or by neutralizing odor molecules. The goal is to keep garments from developing the persistent funk that synthetics often retain, letting you re-wear gear and wash it less.
Why do synthetics need odor treatments?
Synthetic fibers tend to trap and hold body-odor compounds more than natural fibers like merino wool, so they can smell quickly even after washing. Treatments like HeiQ Fresh or Polygiene add odor resistance to synthetics, helping them compete with wool's natural freshness for multi-day and active use.
Sources
- HeiQ Fresh technologies — HeiQ
- Odor control in fabrics — The Mountaineers