Is Your Activewear Toxic? The Case for Plant-Based, Silver-Free Anti-Odour
We think about what we eat, how we train, and what we put on our skin. But how often do we think about the fabric sitting directly against our skin while we exercise? Many synthetic activewear garments are treated with silver ions, zinc, or PFAS to fight odour. This guide looks at what's actually used — and why a plant-based, silver-free anti-odour alternative is the smarter choice for what you wear when you sweat.
The problem: what's really in your gym clothes
Sweat is nearly odourless on its own. Post-workout smell develops when bacteria on your skin break down components of sweat. The problem is what happens inside your activewear:
- Polyester holds onto odour-causing compounds stubbornly — so brands fight odour at the source with anti-microbial finishes.
- The hidden ingredients: many conventional treatments rely on silver ions or zinc. Others use PFAS ("forever chemicals"), now being restricted across the EU under REACH (textile restrictions 2026–2030).
- The catch: fabric labels list fibres (e.g. "78% polyamide"), not the chemical finishes applied on top. So you rarely get to see what's actually against your skin.
Meet the plant-based alternative: APRÍ's two anti-odour technologies
At APRÍ, we've taken a different approach. Every garment is treated with a plant-based anti-odour technology — chosen to match the fabric — free from heavy metals and synthetic biocides. Treated with APRÍtech™ HeiQ Mint or APRÍSHIELD™ NordShield — plant-based anti-odour. No silver, zinc, or PFAS. Free from heavy metals and synthetic biocides. Safe for prolonged direct skin contact.
- APRÍtech™ HeiQ Mint — plant-based anti-odour derived from peppermint. Applied to our polyamide performance pieces: the APRÍTECH leggings, sport bras, and Airy Performance Shorts. No silver, zinc, or PFAS. Free from heavy metals and synthetic biocides. Safe for prolonged direct skin contact.
- APRÍSHIELD™ NordShield — plant-based anti-odour derived from wood extractives. Applied to our t-shirts and sweats: box tee, lyocell t-shirts, sweatshirts, hoodies, and sweat shorts. No silver, zinc, or PFAS. Free from heavy metals and biocides.
What "safe" actually requires
A genuinely non-toxic, anti-odour garment needs four things:
- A plant-based anti-odour treatment that's free from silver, zinc, PFAS and heavy metals (→ HeiQ Mint / NordShield).
- Verifiable wash durability — the treatment must survive 30 washes, not stop after a season.
- Third-party certifications — OEKO-TEX Standard 100, GOTS, Bluesign.
- Honest, measurable results — not just marketing language.
[Proof point — infoga när dokumenterat] Independent testing shows [HeiQ Mint / NordShield] delivers 99.9% bacterial reduction after 30 washes at 30°C. That's the difference between "feels fresh" and "proven fresh."
Natural fibres. Smarter performance.
Technology is only part of the story — we pair it with fabrics that feel good and perform:
- TENCEL™ Lyocell — breathable, moisture-managing natural fibre from sustainably grown wood, used in our lyocell t-shirts (APRÍSHIELD™ / NordShield anti-odour).
- Polyamide + elastane — softer, more durable performance fabric for our leggings, sport bras and Airy Performance Shorts (APRÍtech™ / HeiQ Mint).
- Both chosen to keep you comfortable from morning workout to evening out.
Wear More. Wash Less.
The most sustainable wash is the one you don't need to do. Fewer washes save water and energy and extend garment life. Plant-based anti-odour makes it easier to wear your activewear more often between necessary washes — without compromising freshness. Hygiene still matters after intense sessions; it's about making conscious choices about when washing is actually needed.
Frequently Asked Questions
Is my activewear toxic?
It depends on the finish, not the fibre. Many garments use silver, zinc, or PFAS anti-odour treatments; APRÍ uses plant-based technology (APRÍtech™ HeiQ Mint or APRÍSHIELD™ NordShield), free from heavy metals and synthetic biocides.
Is APRÍ's anti-odour safe for skin?
Yes — plant-based (peppermint-derived HeiQ Mint or wood-derived NordShield), free from silver, zinc, PFAS and heavy metals, safe for prolonged direct skin contact.
How long does the anti-odour last?
[99,9% bakterieminskning efter 30 tvättar — infoga när dokumenterat för respektive teknologi.]
Want the full breakdown? Read our guide on PFAS-free polyamide leggings, why lyocell is plastic-free, and the polyamide vs polyester comparison in our leggings guide.