GEAR SALE | MARA High Waist Basewear Bottoms

Quick-Drying Brief Underwear and Swim Bottom

★★★★★ (59)

As of Nov. 2025 we have switched to a fully member supported business model. No more restocks - only member pre-orders. Become a TK Member to reserve your production spot on our next pre-order.

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

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

Don't take it from us, read the Rearviews!

I literally live in these. The new bottoms have become my first go to grab and I am slowly filling out enough to swap out all old ones. For someone who takes in ALL details/senses at all times, this takes just one more thing out of that removing just one more layer of stress which is crucial in my ability to function in life.
— Jessica (TK Supporter)
Basewear tops and bottoms are great for outdoor activities: climbing and hiking. I’ve also just started wearing the bottoms always because they are high waisted and most of my pants are high waisted so they don’t fall down under my jeans and that is lovely 👍🏼
— V.M. (TK Supporter)
Basewear Tops are for weekends, adventures, bike rides and hiking. Bottoms: I love them for airline travel and managing sweat. Any time I know managing sweat is going to be a problem I wear them. I am also using the High Waist and Crop Top now as a swim suit.
— Ashley (TK Supporter)
Basewear is comfy running and climbing. The band isn't so tight that it leaves marks or gets uncomfortable after a long time. The bottoms are just really cozy.
— N. (TK Supporter)

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Need an different size? No problem.

1. Get a Free Shipping Label

Start an Exchange. We'll email you a complimentary shipping label, on us!

2. Drop it in the Mail

Print your label and stick it on your re-usable packaging. Drop it at your nearest mail box.

3. Get your New Item

Yep, that's it! Our team will handle the rest and your new item will arrive as soon as possible.

FAQ:

I'm in between sizes, should I go up or down?

Measure your perfect fit at www.terakaia.com/find-my-bottoms-size . If you are in between measurements, pick based on your preference! Do you like a breathable fit or a snug fit?

Are they seamless?

No, the TOURA Brief and Thong are not seamless. The seams allow for a gentle hug at the leg and waist. At first, we did try seamless but they wouldn't stay put during water activities.

Will my Thong and Brief sizes be the same?

Possibly. If you have an especially curvy frame and your waist size is dramatically different from your hip size, then you may be a size down in the Thong, as compared to the Brief.

Don't forget a Basewear Top Sports Bra!

The most comfortable hiking sports bra, ever. Our customers have replaced all their regular bras & swimsuits and now only wear Basewear tops.