Our insoles are designed in Bend, Oregon & handcrafted in Portugal.

Two main reasons:

1) Cork is 100 percent sustainable. We use cork in place of petroleum-based plastic and EVA that many brands use. For more information about cork, you can read about Tread & Butter’s commitment to sustainability.

2) Cork has remarkable performance characteristics; it's light, resilient, shock absorbing, and dynamic. For running, walking, or standing for long periods of time, there is literally no better material to have under foot.

Our insoles are designed for performance. Meaning, our insoles are perfect for running, hiking, skiing, etc. And equally great for standing, working on your feet, retail, waiting tables, commuting, etc.

Tread & Butter insoles come in whole sizes for women and men. If you typically wear a half size shoe, we recommend rounding up to the nearest size. For more information, please see our Size Chart.

The best fit for our insoles is high volume footwear like hiking boots, work boots, most running shoes, and casual shoes. Alternatively, if you have a medium-to-narrow foot, our insoles will most likely help improve the fit of your shoes or boots. Note: some dress and casual shoes (slip-ons, loafers, narrow boots, etc) tend to fit a bit smaller and might be difficult to fit with our insoles, or other aftermarket insoles. If you have questions about fitting your insoles, please contact us.

Shorts answer: Yes. In most performance footwear like running shoes, hiking boots and sneakers, our insoles are plug-and-play. Meaning, it probably won't be necessary to do any trimming. But if you need to, you can micro-trim your insoles for a more precise fit. The key is to use a sharp pair of scissors and trim around the toe area only. We suggest you trim a little bit at a time and try them on for size (obviously cutting too much is not good). You can trim a little more if necessary. If you have any questions, please feel free to contact us and we'll be happy to walk you through the simple process.

Great question. You can read our Foot Health Journal for tips and information for treating and reducing pain, and living an active and healthy lifestyle.


Please visit our contact page & drop us a line.

Tread & Butter insoles are guaranteed to feel great on your feet. If you are unsatisfied with your insoles for any reason, please contact us within 30 days for a full refund or exchange.

We offer free domestic returns and exchanges for 30 days on items purchased at treadandbutter.com or at a Tread & Butter pop up store. For Tread & Butter insoles purchased at one of our retail partner stores, please contact the store directly to make your return.


Cork is 100 percent sustainable. More specifically, cork is all natural, a carbon sink, and in our case, we use cork in our insoles where many competitive brands use petroleum-based plastic. Cork also helps sustain the beautiful 'montado' ecosystem in Portugal. For more information about cork, please see our Sustainability page.

We are in the commitment phase of Climate Neutral Certified, a carbon offsetting certification program. We are set to be certified by April 2020 - our entire operation will be offset. For more information, please visit climateneutral.org 

Tread & Butter insoles feature XSTATIC® silver ion technology that kills bacteria & crushes odor to help keep your feet fresh & clean. XSTATIC is bluesign® approved, the highest standard in sustainable textile production.