You've probably done this: clicked on a sustainable underwear brand, liked what you saw, then closed the tab when you saw the price. A single pair for $18–$30 feels hard to justify when you can grab a 6-pack at Target for $15.
We get it. And we think you deserve a straight answer.
Why Sustainable Underwear Costs More (It's Not Just Marketing)
When I started sourcing fabric for properbasics, I assumed the price gap between sustainable and conventional materials would be modest. It wasn't.
There are far fewer mills producing certified recycled or organic fabrics than conventional ones. Fewer suppliers means less competition and higher prices — that's just how it works. Our GRS-certified recycled nylon costs significantly more per yard than the virgin nylon most seamless brands use. The fabric dyeing adds cost too: we work with an Oeko-tex certified facility in South Korea, which means stricter chemical standards and more careful processes than the cheapest options out there.
Then there's scale. Fast fashion brands produce tens of thousands of units per style, which drives their per-unit cost down dramatically. A small brand like ours doesn't get those volume discounts: on fabric, on packaging, on shipping. Every part of the supply chain costs more when you're not ordering in massive quantities.
None of this is meant to make you feel bad for wanting affordable underwear. It's meant to explain what's actually behind the number on the price tag.
The Math Most People Don't Do
Here's where it gets interesting. Let's compare what you're actually spending over time.
A typical fast fashion seamless 3-pack runs about $15. Sounds great, until the elastic loses its stretch and the edges start fraying after a few washes. Most people replace cheap seamless underwear every six months, sometimes more. That's $30 a year for underwear made from virgin nylon, produced with no particular regard for environmental impact.
Our 3-pack is $35, and it's built to last longer. We wash-test our fabric and adhesive extensively before production as we're not designing disposable underwear. So the real annual cost is comparable, and in many cases lower.
The difference is what you're getting for that money. With fast fashion, you're paying $30 a year for underwear that fails you, made from new plastic. With properbasics, you're paying a similar amount for underwear made from GRS-certified recycled nylon that gives existing plastic a second life, dyed at an Oeko-tex certified facility. Same budget. Completely different product.
How We Keep Our Prices Lower Than Other Sustainable Brands
Here's something we don't talk about enough: properbasics is priced at least 20% lower than most comparable sustainable underwear brands.
We do this by cutting overhead, not quality. We don't spend on big advertising campaigns or influencer partnerships. We're a small operation, and that's intentional. Lower overhead means we can pass real savings along without compromising on materials or manufacturing standards.
That said, we'll never compete on price with a $2.50-per-pair fast fashion brand. That price point is only possible when someone (a garment worker, the environment, or both) is absorbing the real cost. According to Fast Company, in 1960, American households spent over 10% of income on clothing, compared to just 3.5% today; yet people buy dramatically more garments per year. Our expectations around what clothing "should" cost have been shaped by decades of increasingly cheap production, not by what things actually cost to make responsibly.
Who This Isn't For
If you need the absolute lowest upfront price and replacing underwear frequently doesn't bother you, we're probably not your best option. That's a valid choice, and we'd rather be honest about it than pretend we're for everyone.
But if you've noticed that cheap seamless underwear keeps letting you down: edges rolling, fit loosening, fabric pilling - and you're tired of re-buying the same disappointing pairs, that's exactly the cycle we built properbasics to break.
What It Really Comes Down To
Sustainable underwear isn't about paying more for the sake of it. It's about paying a similar amount for something that's made better — for you and for the planet.
Next time you're comparing prices, try dividing by how long you think each pair will actually last. That one shift, from "what does it cost?" to "what does it cost per year?", changes the equation entirely.
If you're ready to try sustainable seamless underwear that doesn't cost like luxury, you can shop our collection here.
