Freedom Nitro Running by Ottobock

  • Overview
  • Features
  • Specs
  • Documents

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Comfort that Goes the Distance

The Nitro Running Foot is a custom foot module engineered specifically for jogging and distance running. Each c-shaped running blade is handcrafted using our proprietary carbon fiber layering technique to provide the ideal amount of spring needed to run comfortably. The Nitro Running Foot is customized to user weight and running experience to provide the appropriate balance between strength and flexibility for high impact activities. A tall profile design is available for adult users while the short profile design requires less build height for petite users and children. A male pyramid attachment simplifies the fitting process.

  • Water-resistant

• Individually handcrafted carbon fiber layering technique ensures optimal vertical displacement and energy return
• Endoskeletal attachment option facilitates easy adjustments and fabrication
• Compatibility with exoskeletal design reduces system weight
• Stiffness tailored to amputee weight and running experience
• Rated to 365 lbs., 12-month warranty


  • User Weight Rating: 365 lbs. (166kg)
  • Connector: Integral male pyramid or exoskeletal set-up
  • Warranty: 12 months
  • Production Lead Time: 7-10 business days
  • Build Height and Product Weight:
Size Build Height Product Weight with Shell
Short (FS9) 184 mm 275 g 10 oz
Tall (FS6) 241 mm 300 g 11 oz


user spotlight

Scott Rigsby

An accident changed Scott Rigsby’s life forever, but it didn’t take away his spirit.  With a supportive team and a drive to push the limits of what was possible, he went on to compete and win in one of the world's toughest races—the Ironman. "Doing the Unthinkable" is a motto Scott Rigsby embraced when he decided to change the world by breaking down barriers for physically challenged athletes. In October 2007, he became the first double amputee wearing prostheses to finish an Ironman distance triathlon. Scott, 39, finished the 2.4 mile swim portion in 1:28:48, the 112 mile cycling...

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