The Everyday Thong
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Preorder item
This item is currently available for preorder only.
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your underwear deserves better
You care about your skin, your wellness, your rituals. We’re pioneering care for your most intimate parts.
Twice the softness of cotton
Our underwear is made from TENCEL™ Modal—sustainably derived from trees and twice as soft as cotton. Gentle on the skin and made to feel like nothing at all.
Let your ____ breathe freely
TENCEL™ fibers are unfavorable for bacteria growth. They wick away moisture and keep you fresh through the day. Designed to help reduce the risk of unwanted infections.
OEKO-TEX Certified
OEKO-TEX® certified —clean, non-toxic with no harmful substances
set apart by design
TENCEL™ modal antimicrobial fabric derived from trees

Tested by real women, with over 1,000 five-star reviews

Engineered for optimal airflow and breathability

A 2cm extra-long gusset for everyday protection

Soft leg elastics designed to eliminate digging in

frequently asked questions
The Everyday Thong is made from ultra-soft modal for daily comfort — ideal under work clothes, jeans, and dresses. The Workout Thong uses a moisture-wicking performance fabric that handles sweat and movement during exercise. Same flattering thong shape, different fabric engineered for different purposes.
Yes. The Everyday Thong is Underdays’ best option for completely invisible underwear under any outfit, including white, thin, or body-hugging fabrics.
Yes — that’s exactly what it’s designed for. The modal fabric is softer than cotton and the wider waistband sits flat without cutting in. Many of our customers wear the Everyday Thong as their daily go-to, not just for special occasions or specific outfits.
It’s a great first thong. The wider waistband and ultra-soft modal make it far more comfortable than most thongs on the market. If you’re switching from briefs or cheekies and want to eliminate VPL, this is the easiest transition. And if it’s not for you, we offer free exchanges.
No. The Everyday Thong is designed to stay in place all day. The wider waistband keeps it anchored without digging in, and the flat leg elastics means nothing shifts or bunches.
The Everyday Thong. It’s completely invisible under body-hugging dresses, pencil skirts, silk, satin, and any thin or light-coloured fabrics. If you prefer more coverage, the Cheeky is the next best option, though it may show faint lines under very thin materials.
For light activities like walking, gentle yoga, or Pilates, the Everyday Thong works well. For anything higher intensity — running, HIIT, hot yoga, weight training — the Workout Thong’s moisture-wicking fabric will keep you drier and more comfortable.
We’re focused on making the best underwear possible. Bralettes are currently in development— sign up to our mailing list to be the first to know when they launch.
Our core colours such as Black and Sand are always available and restocked regularly. Fashion colours and seasonal drops are limited edition — once they sell out, they won't be coming back. If you spot a colour you love, we'd recommend grabbing it before it's gone. Follow us on social or sign up to our mailing list to be the first to know when new color drops land.