Super light. Crazy fast. The Flight RKT shoe is the lightest trail running shoe we’ve ever created.

Explore The Shoe

Fine-tuned for speed with development input from TNF™ ultrarunner Rob Krar, this minimalist trail runner features our new energy-returning Fast Foam™ midsole system, a breathable engineered-mesh upper and trail-defying traction.

Meet Rob Krar

The Flight RKT is everything I need and nothing I don’t.”

Elite ultrarunner and two-time Western States winner Rob Krar is the muse behind our first Flight Series™ shoe. After brainstorming together for 18 months, we developed a minimalist trail-racing shoe that delivers ample cushioning, grip and support on the trails. The Flight RKT is fine-tuned for long runs across varied terrain and features design elements inspired by Rob’s training ground in Flagstaff, Arizona.

Why is this your perfect shoe?

I knew what I wanted and needed in a shoe to stay healthy and reach my potential, and this was the genesis of the Flight RKT. It’s light with a ton of cushioning and perfectly reflects my approach to both training and racing.

How’s the ride?

Graceful, adaptable, fast and light. Some of these qualities I possess, some I wish I did, but they’re all embodied in the Flight RKT.

Is this shoe for everyone?

The Flight RKT is everything I need and nothing I don’t. Even though this shoe is very personal for me, I think it’s gonna have a ton of qualities that the everyday runner is going to enjoy.

Learn More About Rob Krar


Push your limits and run farther with ultralight, weather-resistant protection from the elements.


Running on Empty

See our spectacular misadventure abroad with TNF ultrarunner Rory Bosio on the 118-mile long GR 20. Rory digs deep during her first attempt at finishing one of Europe’s most technical trails with 43,000 feet of elevation gain.