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

More episodes of KORE Outdoors Podcast

• Scaling a Cottage Outdoor Brand with Chris Schabow, CEO of Enlightened Equipment · April 8, 2026 · 1h 25m
• Engineering The Future of Skiing with Jonathan Audet of Ferreol Skis · March 25, 2026 · 1h 2m
• Building a Category-Specific Brand with Dario Phillips of Slowtide · March 4, 2026 · 1h 3m
• AI and the Outdoor Industry with David Kenworthy and Michael Rueckert · January 21, 2026 · 1h 19m
• 14k Followers in 30 Days: The Playbook That Built Seniq's Growth on Instagram · January 8, 2026 · 1h 9m
• 25 Years of Packrafting with Thor Tingey of Alpacka Raft: From Innovation to Industry Leadership · December 17, 2025 · 1h 14m

Explore listener stats, chart rankings, contacts and more on the KORE Outdoors Podcast podcast page.