Prosthetic foot ‒ 1C68 Triton side flex

Marije waves at a taxi as she stands on the curb with her Triton side flex prosthetic foot.

Benefits at a glance

Marije handles slopes and inclines in Amsterdam easily thanks to her Triton side flex prosthetic foot.

Adapts effortlessly to sideward slopes

There was a time when Marije would have taken detours. Thanks to her Triton side flex, the sloping sidewalks, slanted curbs and other inclines in the city no longer pose a problem for her.

Marije and her boyfriend stand in the bow of a tourist boat, taking pictures of themselves with a smartphone

Standing safely on unsteady surfaces

A boat tour through Amsterdam: What a great surprise from her boyfriend Felix! The couple take a lot of selfies, and these carefree images show that Marije’s prosthetic foot gives her secure, worry-free footing – even on unsteady surfaces.

Marije skilfully navigates the confined space between the furniture in her kitchen with her Triton side flex carbon foot.

Moving in confined spaces

A quick movement between the sink and fridge, a small step to the side towards the cutlery drawer. Thanks to her Triton side flex, Marije can prepare a meal in a hurry when she has to – before her next shift at the hospital.

Marije leans to the side against her fridge as she talks to her boyfriend

Relaxed leaning and standing

With her previous prosthetic foot, Marije used to find it very uncomfortable to simply lean sideways against a wall or door frame while chatting with friends. But the side-to-side flexibility of her Triton side flex lets her stand in a relaxed position, even during longer conversations.

Marije carries her bicycle out of the corridor and down some steps into the courtyard with her Triton side flex prosthetic foot

Safe and comfortable movement

Thanks to her Triton side flex, everyday activities like quickly moving her bicycle down the steps from the hallway or carrying the weekly shopping up to the flat aren’t a challenge for Marije.

Marije playfully swings a young patient around by her hands in a treatment room.

Standing with legs apart: safe and comfortable

As a paediatrician, Marije is always concerned about the well-being of her small patients. Her Triton side flex gives her stability she can count on when lifting and carrying the little ones.

Now that she has the Triton side flex, Marije enjoys walking in the city park – despite the bumps or obstacles she might run into.

Walking on uneven ground and obstacles

Thanks to her Triton side flex, which easily compensates for side-to-side unevenness and small obstacles, Marije is now able to dedicate her full attention to her surroundings and the people around her when she takes walks outside.

Marije and her boyfriend sit on the edge of a fountain and let their legs dangle in the water

Afraid of water? Not with the Triton side flex!

Marije is glad that she can spend time in and on the water when the weather is hot. She enjoys the refreshing coolness with her boyfriend and her Triton side flex carbon foot. The Triton side flex is resistant to fresh, salt and chlorinated water.


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Information for users

This flyer contains important information about the Triton side flex – summarised for you.


  • Is the Triton side flex prosthetic foot suitable for me?

    The prosthetic foot with side-to-side flexibility was developed for ambitious users (mobility grades 3–4) who move about in a wide range of different indoor and outdoor areas and place high value on an uncompromising response and control – even during high-impact activities. It is suitable for users weighing up to 125 kg. Due to its low height, the Triton side flex is also suitable for users with limited clearance. Both transfemoral and transtibial amputees can benefit from the features of this prosthetic foot.

  • What makes the Triton side flex carbon foot different from other prosthetic feet with side-to-side flexibility?

    The Triton side flex is a prosthetic foot whose extraordinary extent of side-to-side mobility sets it apart from other feet. It adapts to the current situation immediately and in a controlled manner. This improves comfort and the feeling of safety.

  • Is the Triton side flex suitable for sports?

    Yes, the Triton side flex is suitable for common field sports, like the other products in the Triton line of prosthetic feet. The prosthetic foot is a good alternative for users with limited clearance. For sports that require sideways lunges (such as table tennis), the Triton side flex is a good choice.

  • Is the Triton side flex waterproof?

    The Triton side flex prosthetic foot is waterproof and can be used in fresh, salt or chlorinated water. In order to maintain the functionality of the foot, it is essential to clean it as instructed after using it in water.

  • Is the Triton side flex available in my size?

    The prosthetic foot is available in a range of sizes from 22 to 30 cm. Your O&P professional selects the Triton side flex for you based on your foot size and body weight.

  • Do I need a new prosthesis to use the Triton side flex?

    No, the Triton side flex can be integrated into a new or an existing modular prosthesis, provided the structural height is sufficient. Your O&P professional will advise you and select, order and install the prosthetic foot for you.

  • Do I need to wear special shoes with the Triton side flex?

    No, the Triton side flex is delivered with a footshell that is based on the shape of a natural foot, making it compatible with all common types of shoes. Most foot sizes also come in a slim and a normal version to match your natural foot as closely as possible. The abducted big toe on the footshell makes it possible to wear sandals and flip-flops.