Guided by the belief that “simplicity is never easy,” Shimpei approaches design with intention and depth. In this conversation, we explore the origins of 4c studios, the philosophy behind his custom system, and how he sees the future of 4c studios evolving through a lens where design and lifestyle are deeply intertwined.

I’m Shimpei Hara, designer of 4c studios. Rooted in climbing culture and philosophy, our concept is “between the city and the rock”—we create apparel for those who think, wander, and quietly resist. Our pieces combine climbing functionality with clean, minimal design, and we use a made-to-order system that connects maker and customer, giving form to each person’s unique story.

Outside of 4c studios, I also co-founded a company with friends that focuses on bringing circular economy principles—like repair, reuse, and upcycling—into the apparel space. We work collaboratively with brands, manufacturers, and local communities to develop projects, host events, and offer consulting aimed at shaping a more sustainable future.

To me, climbing isn’t just a sport—it’s a way of life. Over time, I’ve come to see how deeply it’s tied to my personal philosophy and the way I express myself through design. For me, climbing isn’t something extraordinary; it’s something that blends effortlessly into daily life, a natural part of being. As that perspective took root, I began to feel a sense of possibility in expressing the emotions and moments that exist between the city and the rock, through design. It became a space where challenge and imagination could meet.

I was also deeply influenced by books like Yosemite in the Sixties by Glen Denny and The Stone Masters by John Long and Dean Fidelman. The climbers in those photos—how they lived, what they valued—left a big impression on me. Their way of life became a source of inspiration for 4c studios’ philosophy.

Getting to “simple” takes a lot of thought. I’m quite introspective, so I don’t take shortcuts or aim for surface-level simplicity. Instead, I spend time in dialogue with the many versions of myself, slowly distilling what’s necessary for 4c studios.

I’m constantly asking: Does this design align with our concept? Does it balance performance and aesthetic? Will it resonate with others? Most days, the answers aren’t immediate. But I’ve come to see that this back-and-forth is part of reaching what I call the “simple” zone. It’s not easy, but it’s necessary.

Being able to co-create designs directly with each customer brings a new kind of value—something beyond just making a product. Our customers aren’t passive consumers; they’re part of the design process. The act of choosing and being involved builds a sense of attachment. I think it changes what it means to wear something.

Through these conversations, I often get new ideas or even technical insights into climbing itself. There’s a shared learning that happens, and that’s where 4c studios’ designs evolve. Every dialogue pushes the brand forward in a meaningful way.

Patagonia taught me a lot, but four key takeaways have really shaped 4c studios. First, I had the chance to deepen my understanding of climbing culture—its philosophy, techniques, and the people who live it. Second, I learned how vital communication with customers is. I started thinking more intentionally about how to share a brand vision and foster real connection through conversation. Third, I gained the ability to think a step ahead—to take an imagined future and translate it into design and service. And lastly, the importance of integrity. Being honest and sincere in everything—your work, your product, and your relationship with people. That mindset is foundational to 4c studios today.

I’ll definitely keep developing the TYPE line, but I’m also thinking about how to make our custom-order system more accessible to more people. While climbing will remain a central focus, I’d like to bring more of my own personal values and philosophies into future pieces.

In spring 2025, we’re rebranding ‘4c’ to ‘4c studios’, with plans to expand beyond apparel into new expressions of design and art. I’m excited for what’s to come, and I hope people will follow along as we explore this next chapter.

Thank you so much, Shimpei! We loved hearing about the depth behind your design process, and how 4c studios creates value through personal connection and simplicity.

You can follow Shimpei (@shimpeihara) and 4c studios (@4c_climbing) to explore his work and stay up to date on future projects.