High Waist | MARA Basewear Bottoms - Swim Hiking Underwear

High-Waisted Hiking Underwear and Swim Bottom

★★★★★ (27)

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.

The MARA High Waist is our most universally flattering full-coverage hiking underwear that doubles as a swimsuit. No matter what movement or outdoor environment you get into, you'll feel comfortable, confident, and cute.  Basewear Bottoms will become the only underwear you need to pack when you head out for travel, backpacking, or just a weekend camping trip. They're quick-drying, light, and comfortable and they won't slip down if you happen to jump off a cliff into a big alpine lake.

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.

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

★★★★★
★★★★★
★★★★★
★★★★★

FAQ:

How should I figure out my size?

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?

How will I know if I ordered the right fit?

We are finding most people fit a spectrum of sizes in the MARA High Waist Bottoms. If the bottoms feel loose you will probably want to size down. If they fit comfortably that is most likely your size but you could also size down for more of a tighter shapewear effect.

Will my MARA bottoms be the same size as my TOURA bottoms?

Possibly. With the higher waist on the MARA bottoms we are finding most humans are a size down from their TOURA Brief size.