A Simple Change Means A Big Impact
Ever thought that the clothes you choose could be affecting your health without you even knowing? It all starts with the basics—your underwear. We wear it every single day, often close to the most sensitive parts of our bodies. Yet, most people don’t stop to consider what’s in those fabrics or how they’re colored.
At Net Positive, we’re committed to transparency, sustainability, and—above all—your well-being. That's why we only use low-impact, non-toxic dyes, saving water and avoiding harsh chemicals. But conventional clothing, especially underwear and period products, often hides “forever chemicals” known as PFAS. These have been linked to hormone disruption, cancer, and more—yet they seep into our skin daily.
This guide will walk you through why your underwear really matters, the hidden dangers of cheap fabrics and dyes, and how small swaps can send a big message to your body—and the planet.
Why Your Undies Matter More Than Outerwear
Underwear is the foundation of your outfit—and of your health. Fabrics like polyester, treated cotton, and cheap blends often contain chemical residues that sit against your skin all day. These fabrics are common culprits in skin irritation, yeast infections, and even long-term hormone imbalance. That intimate contact makes your underwear more influential than any other garment in your wardrobe.
Despite growing awareness about non-toxic beauty and skincare, few people consider their clothes part of the same conversation. Your underwear is the best starting point for a toxin-free lifestyle, because what touches your skin matters deeply.
The Hidden Dangers: PFAS & Toxic Dyes
a. Forever Chemicals in Everyday Undies
PFAS (per- and polyfluoroalkyl substances) are used to make fabrics water-resistant and stain-repellent. Sounds great in theory, but these chemicals linger in your body for decades. One alarming study found PFAS in 65% of period underwear and 48% of pads and liners—some even labeled “organic” .
These chemicals are linked to hormonal imbalances, high blood pressure during pregnancy, fertility issues, immune suppression, kidney, testicular cancers, and more. Because period underwear is worn closest to your most vulnerable parts, the risk of absorption is particularly high
b. Toxic Dyes That Linger on Skin
Standard textile dyes often rely on heavy metals, azo compounds, and chemical fixatives. Not only do these contribute to polluted waterways, but they also risk skin irritation and allergies when worn next to your body. Even after washing, residues can remain trapped in the fabric, continually exposing your skin without you realizing it.
What Low-Impact Dyes Mean (& Why They Matter)
a. What Are Low-Impact Dyes?
Low-impact dyes—also known as fiber-reactive dyes—capture up to 70–95% of the dye directly onto fabric, significantly reducing wastewater and pollution. They work at lower temperatures (around 30 °C), avoiding high energy use and eliminating the need for heavy-metal mordants.
These dyes are certified safe by OEKO-TEX® and GOTS, ensuring they are free from heavy metals, formaldehyde, carcinogens, and allergy-inducing substances.
b. Environmental Benefits
-
Water savings of 50–60% over conventional dyeing. Energy reductions due to lower heat requirements
-
Less chemical runoff, protecting rivers and ecosystems
By choosing undies dyed this way, you support cleaner production and healthier supply chains—from farmers to rivers.
How Net Positive Champions Safer Underwear Production
At Net Positive, sustainability isn’t just a clickbait headline—it’s our core process, especially when it comes to color. Here’s how we stand apart:
-
Biodegradable low-impact dyes, free of heavy metals and toxins
-
60% water reduction compared to typical dye methods
-
95% dye absorption—waste reduced to just 5%, far better than the industry average of ~50%
-
Lower-temperature dyeing, saving energy and preserving fabric integrity
-
All dyes aligned with OEKO-TEX® Standard 100 and GOTS certifications
The result? Undergarments that are skin-safe, planet-friendly, and built to last—so you feel good about what’s against your skin.
How to Create Your Own Non-Toxic Undie Drawer
Ready to take action? Here’s a simple plan:
-
Audit your current underwear: Look for polyester, treated cotton, or silks. Keep them for occasional wear, not daily rotation.
-
Replace gradually: Swap in two pairs of Net Positive underwear each month.
-
Choose certified pieces: Look for OEKO-TEX® and GOTS labels.
-
Opt for low-impact dyes: Focus on brands that share their dyeing processes.
-
Trust your skin: Notice less irritation, fewer odors, greater comfort.
Tip: Wash in cold water and air-dry to preserve both fabric and planet.
Why This Choice Is Powerful
This small wardrobe change packs big significance:
-
Well-being: Feel confident and comfortable all day, plus reduced chemical exposure
-
Empowerment: You decide what touches you—literally taking health into your own hands
-
Planet care: Reduced water, reduced chemicals, responsible supply chains
Every intentional choice sends a ripple through the industry. When we show demand for transparency and safety, from the inside out, brands follow.
Going non-toxic doesn’t need to be complicated—it starts with what you wear underneath. Swap in safe, sustainable underwear dyed the right way, and you’ll support your body, your values, and a healthier planet.
Ready to make your first move? Check your labels today. Choose Net Positive. Wear with purpose.