About Us

How D-SOX Began

For a long time, we tried to accept that we would simply have to wear whatever was available on the market. But it just did not work for us.

And so, in the spring of 2015, the first collection of D-SOX socks was born.

Project No. 1 — Socks

You can have a great jersey, but it is the details that make the whole outfit complete. That is simply how it is.

We often heard that socks could either look good or perform well, but never both. Fortunately, after a long search, we teamed up with one of the true masters of Czech sock manufacturing. Together, we created a killer blend of polypropylene, polyamide and elastane.

Several months of thorough testing followed—on mountain bikes, road bikes and indoor trainers.

We did not want to introduce another ordinary product. We wanted to create something exceptional. Something we could genuinely be proud of.

That is how our socks were born: combining outstanding performance with distinctive design.

Project No. 2 — Bottles

We are obsessed with details. We know it, and we are proud of it.

Because strength lies in the details, D-SOX cycling bottles came next. We designed them to complement our socks perfectly and complete the entire cycling outfit.

Project No. 3 — Jerseys

Project number three came about almost by accident.

Originally, we simply wanted some good-looking jerseys for ourselves. We did not want to ride in clothing covered with advertisements, dressed in every possible fluorescent colour and looking like everyone else.

We wanted to stand out from the crowd. We wanted to be original.

That is how our first chequerboard cycling kit was created. The pattern was an obvious choice for us, but we never imagined how much interest it would generate among you.

So we thought: why not?

We have been designing cycling jerseys ever since, and we have to admit that we genuinely love it.

Coming up with ideas, designing, testing and spending time among you—the cycling community—is a joy that continues to inspire us.

A New Chapter for D-SOX

In 2026, D-SOX began writing the next chapter of its story.

The original owners, the Dittrich family, no longer had enough time and space to give the brand the attention it deserved. Over more than ten years, however, D-SOX had built a strong name, a distinctive visual identity and a community of customers who value quality, performance and original design.

We did not want to see a brand like that simply disappear.

That is why D-SOX was taken under the wing of jezdicycli s.r.o. and the CYCLI and Cyklistickey projects. The people behind this new chapter are Jakub Jílek and Dominik Petrnoušek.

Cycling is part of our everyday lives. We know its joys, its discomforts and all the small details that determine whether you truly feel good on a bike.

For us, taking over D-SOX was therefore more than a business decision. It was an opportunity to preserve a high-quality Czech cycling brand and continue developing everything it has stood for since the very beginning.

We want to build on the work of the original owners while respecting the history of D-SOX. At the same time, we want to keep moving the brand forward.

We want to bring new ideas, new products and new designs that remain original, functional and made for people who love cycling as much as we do.

What We Stand For

Original Design

Our products are based on our own ideas.

We do not copy others, and we do not blindly follow whatever happens to be popular at the time.

We think, sketch, design and search for our own path.

Quality Comes First

We love design, but we are uncompromising when it comes to quality.

A product may look great, but it must also perform properly, fit well and stand the test of time.

We believe that feeling good and looking good should always go hand in hand.

Honest Development and Testing

Before offering a new product to our customers, we want to know how it performs in real-world conditions.

We test our products on the road, off-road and during everyday use.

We do not want to sell anything we would not believe in or use ourselves.

Respect for the Brand’s Origins

D-SOX has its own story, character and community.

Our goal is not to rewrite its past, but to build on it and give the brand the opportunity to continue.

We would like to thank the Dittrich family for everything they created, as well as everyone who has been—and continues to be—part of the D-SOX story.

We are excited to see what comes next.

Jakub Jílek and Dominik Petrnoušek
The D-SOX, CYCLI and Cyklistickey Team