
Building a brand for the Renaissance athlete with Mattie and Matt Sims of Courier Socks
From KORE Outdoors Podcast by KORE Outdoors
April 22, 2026 · 1h 14m · Episode 44
About this episode
Matt and Mattie Sims discuss building Courier Socks, a brand for the Renaissance athlete, and share insights on bootstrapped growth and marketing strategies.
Matt and Mattie Sims are the co-founders of Courier Socks, a performance sock brand built for the Renaissance athlete — the person who isn't limited to just one sport. In this episode, we get into how a snapped achilles and a $10 sock sparked a product thesis, how five co-founders from world-class brands assembled into something that felt inevitable, and what it really looks like to build a bootstrapped brand without quitting your day job, without outside funding, and with a toddler in the mix. Topics covered: Building with five co-founders — why more wasn't messier, it was essential The Renaissance athlete — Courier's positioning and who they're actually building for The sock category opportunity — why performance socks have been left behind relative to footwear Bootstrapped growth and marketing — what's worked, what hasn't, and the myth of the breakthrough moment Lessons from Lululemon — what they carried out and what they left behind Links: Get 15% off your Courier Socks order by using this link . Or use code KORE15 at checkout Courier's website Courier on Instagram BDBC Public Relations The Running Event / Switchback tradeshow Tiny Experiments - book by Anne-Laure Le Cunff…
People in this episode
Host: KORE Outdoors
Guests: Matt Sims, Mattie Sims
Topics covered
- Building a brand
- Renaissance athlete
- Performance socks
- Bootstrapped growth
- Marketing strategies
- Lessons from Lululemon
Keywords
- Courier Socks
- Renaissance athlete
- performance socks
- bootstrapped brand
- marketing
- Lululemon
- entrepreneurship
Sponsors
Courier Socks
Mentioned in this episode
Organizations: Courier Socks, Lululemon
Books & works: Tiny Experiments
Places: British Columbia
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