Technical underlayers - without the waste.

Our member-funded model means we only make just the right amount of Basewear.

Less waste, more sustainable. 🌎

Pre-Order Only
Small Batch, Members Only.
Women Owned
Grassroots. Women + Gender Queer Run.
No Over Production
Opt out of Fashion Waste
Get the perfect fit, guaranteed. ✨Shipping & exchanges are on us.

Opt out of fast fashion and the capitalist hellscape.

Tired of mass produced outdoor clothes that don't fit right from corporations that are destroying the planet?

Yea, we were too.

By becoming a member, you can join our
pre-order list and help us to make just the right amount of new items — preventing overproduction & waste.

No infinite growth or landfills full of unworn clothing.
We’re creating only what we need – no more, no less.

Our member-funded model is powered by passionate, adventurous folks like you. 💙

Members are saying
Members are saying
“Took a chance on becoming a member before I'd even tried out any TK Basewear, and I'm already loving it. I received my first set quickly after joining and immediately tested the bra out on a run — I have never worn such a comfortable sports bra! Can't wait for the next batch to arrive!”
— Kerry M., Norfolk, VA
Members are saying
“The membership is a great deal. You get your money's worth with the initial shipment and early access is imperative because they sell out so fast!”
— Jamie H., Kaneohe, HI
Members are saying
“This is an amazing way to support a fabulous company. I love getting the pre-order and being able to choose which items, if any, to purchase. I also really like the concept of funding the production of the order and helping to reduce an abundance of surplus or waste.”
— Jane L., Manchester, NH

Hey, we’re TK!

No big corporation here. Tera Kaia is a grassroots, member-supported business based out of the Eastern Sierra. Our team facilitates the creation of small batches of ultra comfortable underlayers for everything you do: from swimming to hiking to simply hanging out on the couch. We’re known for making the only sports bra you’ll ever want to own.

♻️
Sustainable & Ethical Production
🤝
Member Supported Grassroots Community
🩷
Women-owned & run
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