Soft & Natural, For Growing TeensFor Growing Teens

Premium underwear. NO NYLON OR POLYESTER

⭐⭐⭐⭐⭐ 2K+ Happy Customers

Nature-based softness
⭐⭐⭐⭐⭐ 1K happy customers
OEKO-TEX® 100 certified
Nature-based softness | OEKO-TEX® 100 certified

Our Innovative Fabrics (better than cotton)

We use innovative, nature-based fabrics like Lenzing™ TENCEL Lyocell and organic cotton - produced in non-toxic closed-loop systems and certified to the highest sustainability standards, including OEKO-TEX® 100. That means no harmful chemicals, no toxins - just skin-safe comfort.

Unlike polyester and nylon, which are 100% fossil-fuel-based plastics that shed microplastics into your body and the ocean, our fabrics are naturally breathable, bacteria-resistant, and cool against the skin. No heat and odour-trapping synthetics - just better for you and the planet.

The Billie Green difference

Better materials. More comfort

Thoughtfully designed for your child and the planet.

Billie Green
Nature-based, ultra-soft certified fabrics
Other brands
Made with fossil-fuel-based plastics
Billie Green
Lightweight, breathable, and anti-bacterial
Other brands
Traps sweat, heat and odour.
Billie Green
Minimal synthetics, gentle on people & planet.
Other brands
Releases harmful microplastics into the human body and the environment.
Billie Green
OEKO-TEX® 100 certified – no harmful chemicals.
Other brands
Often contains harmful chemicals such as PFAS and BPAs.
Billie Green
Designed to grow with you and last longer
Other brands
Skimpy, fast-fashion designs that teens grow out of quickly.
Billie Green
Air out and wear again—only needs weekly washing.
Other brands
Needs washing after every wear due to odour.
Billie Green
Naturally kind to sensitive skin.
Other brands
Can irritate sensitive skin.
Customer reviews
My 10 year old loves the reversible racer back bra as it's so soft and comfy. It's more like a top on her at the moment and I love that she can grow into it.
— Mari T
My daughter has sensitive skin so she can't wear the nylon bras of other brands and cotton bras tend to hold moisture and irritate. So happy to have found this brand!
— Tara S
I love it the softness of the crop bra and the racerback bra. The active bra feels really silky and nice also!
— Olive (11 Years Old)

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