Benefits at a glance

With her Trias prosthetic foot, Anita has the flexibility to move about in her home and can rely on the foot during her activities.

Move your way

The Trias adapts to varying terrain and ensures stability, whether you’re at home or on your way to your favorite places outdoors.

Josef takes a leisurely stroll through the farmer’s market.

Energy return that’s right for you

The Trias prosthetic foot delivers reliable performance with every step. From a slow stroll to walking at moderate speed, you can set your own pace with the Trias.

Anita wears her Trias prosthetic foot as she walks through the living room holding a flower vase in her hands.

Soft rollover for easy movement patterns

The triangular design of the Trias offers you a soft rollover for comfortable walking.

Resistant to fresh, salt, and chlorinated water

Protected against fresh, salt and chlorinated water

With integrated seals and the use of corrosion resistant materials, Trias is protected against fresh, salt and chlorinated water. The water runoff channels prevent water from collecting in the interior of the prosthesis.

Ottobock foot options

More than a foot. A foundation.

The prosthetic foot can make all of the difference in determining your outcomes. Learn more about Ottobock’s extensive foot portfolio here.


  • Is the 1C30-1 Trias waterproof?

    Yes, the 1C30-1 Trias is resistant to fresh, salt and chlorinated water. You can bathe, shower and participate in other activities in wet areas with the prosthetic foot. Please clean your prosthetic foot according to the instructions for use after using it in water.

  • Is the Trias prosthetic foot right for me?

    The Trias is suitable for patients with a transtibial amputation, knee disarticulation, transfemoral amputation or hip disarticulation, who have low to moderate activity levels, a weight of up to 275 lbs and require a lightweight, functional carbon fiber foot.

  • Is the Trias available in my size?

    The prosthetic foot is available in sizes 21 to 30 cm. Your O&P professional selects the appropriate prosthetic foot for you according to your foot size and body weight.

  • Will I need a new prosthesis for the Trias?

    No, the Trias can be integrated into either a new or an existing modular prosthesis, provided it has sufficient build height.

  • Do I need to wear special shoes with the Trias?

    No, the Trias is delivered with a footshell that is compatible with most common types of shoes. A slim or regular size footshell is available in most foot sizes to match your needs as closely as possible.

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