Levitate Prosthetic Feet: Making an Active Lifestyle More Accessible

Reading Time: 7 minutes

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Summary:

• Levitate founder Lasse Madsen built the line after a teenage leg amputation

• The Forever prosthetic foot delivers energy return for daily life and sport

• EVERSA™ fiberglass composite is waterproof and tested to 2 million load cycles

• Levitate’s Running Blades use flexible fiberglass, not carbon fiber, for everyday runners

• The Quick Change Adapter swaps foot and blade in seconds

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When Lasse Madsen lost his right leg above the knee as a teenager, active prosthetic feet were a new and nearly inaccessible technology. So, he wore a makeshift device that his prosthetist assembled from spare parts.

What kept the real thing out of reach wasn’t just availability but also cost. The financial hurdle to acquiring an active prosthetic solution became a major source of frustration that stayed with Madsen for years: while the necessary equipment for an active lifestyle existed, it was unaffordable for him.

From Frustration to Engineering  

Then Madsen became an engineer. With roughly a decade of experience, he spent two years developing his first prosthetic solution, working alongside engineers from the Technical University of Denmark.

The company that grew out of that work, Levitate Technology ApS, is located in Herlev, Denmark. Its mission addresses the gap Madsen initially identified: ensuring equal access to an active lifestyle. Levitate aims to make high-quality prosthetics affordable, transforming them from specialized medical devices into accessible sports gear—widely available rather than limited to those who can afford the high cost.

The company believes that when advanced prosthetics are accessible, individuals are better able to reach their full potential and create a future where limb loss or limb difference does not limit them.   

The Forever Foot  

The Forever is Levitate’s everyday active prosthetic foot—built for users who want a mobile, full daily life without giving up a slim, discreet profile under regular clothing. Levitate describes the line as crafted for daily activities, including the demands of an active day. One user even describes relying on the Forever foot for weight lifting.

The Forever feet are built around a curved composite spring paired with an active heel. This design is meant to carry the user smoothly from heel strike to toe-off for a controlled, natural gait cycle, while the spring absorbs shock and returns energy to reduce fatigue during prolonged activity.

The Forever series consists of four prosthetic feet—the Levitate Forever LP, Levitate Forever 6”, Levitate Forever 7”, and Levitate Forever 9”.

The Forever 6”, 7”, and 9” are essentially the same prosthetic feet with three different build heights at 5.9 inches (15.2 cm), 7.1 inches (18cm), and 8.7 inches (22 cm), respectively. Each foot has a 0.4-inch (1 cm) heel height, so the choice comes down to a user’s clearance and residual limb length rather than to activity or weight.

All three prosthetic feet are waterproof, meaning they’re designed for use in wet environments, including everyday water exposure and submersion. The feet maintain reliable performance in moisture, humidity, and salt water.

Meanwhile, the Forever LP is built as a low-profile foot, carrying a low build height for users with long residual limbs. It caters to a broader range of users than the first three prosthetic feet—a K2-K4 mobility range rather than K3-K4—and suits everyday movement as well as low-impact activities like yoga and walking on varied terrain.  

The EVERSA™ Composite  

Levitate’s Forever prosthetic feet and the Running Blades line are built from the same material: EVERSA™, the company’s own fiberglass composite, used for the curved spring and, in the Forever, the active heel.

The material is engineered to store and return energy, so each step is a controlled push rather than an abrupt one. The material is also designed to deliver progressively more force at the moment of impact, take the harshness out of ground contact, and provide multi-axial stability that remains predictable on uneven surfaces.

Levitate also describes EVERSA™ as fully waterproof—rated for moisture, humidity, saltwater, and submersion—and as durable enough to have passed validation through two million load cycles under ISO testing.

 

Built to Switch: The Quick Change Adapter  

Another great thing about the Forever foot is that it doesn’t have to be a permanent fixture. Levitate’s Quick Change Adapter lets a user swap between feet—for example, between a Forever foot and a Levitate Running Blade—in seconds without replacing the entire socket. This way, the prosthetic foot can be matched to your activity rather than locked into one setup for the day.

This is also where the Forever line connects to Levitate’s running line. While the Forever is built for daily life and sport, the Running Blade is purpose-built for running. It drops the heel for a flexible keel and a gripping, replaceable sole, trading that everyday discretion for push-off on the track or field.

The material is what sets Levitate's blade apart. Most running blades are made of carbon fiber; Levitate builds its blade from fiberglass—the same EVERSA™ composite used in the Forever. According to Levitate, carbon-fiber blades tend to need a high cadence before their energy return engages, which suits fast, practiced runners but leaves slower ones working against the blade.

Fiberglass also flexes more readily, returning energy more progressively across a range of speeds, so jogging and casual running feel as controlled as sprinting. A shorter toe length steadies balance at slower paces, and a lower build height widens the range of users it fits, including those with longer residual limbs. All these features serve the idea that the running blade is built around: running made accessible to everyday athletes, not just elite ones. Levitate’s Running Blades are designed for both casual and competitive use and are available in Blade 8” and Blade 10”.

The Forever line and Running Blade line, with a little help from Levitate’s Quick Change Adapter, are built to coexist rather than compete. For example, if you have a Forever 7”, you can use the Blade 8” for running. If you have a Forever 9”, the Blade 10” will work well.

Closing the Gap  

At the core of the company is Madsen’s vision for an accessible, active prosthetic foot. At the time of writing, a Forever foot is priced at USD 2,240, and it is PDAC-approved and coded under L5981, the classification insurers use when a prosthetic foot is submitted for reimbursement. For context, comparable energy-storing feet commonly run several thousand dollars, which places the Forever toward the lower end of its category.

And this is the gap the company set out to close: a prosthetic foot durable enough for daily life and sport, discreet enough to go unnoticed, and financially within reach. After all, Levitate was built by someone who needed an active foot he couldn’t get and set out to make sure the next person could.

For more information about Levitate and their products, please visit letslevitate.com.

Related Reading:

An Overview of Prosthetic Foot Technology

Do Blade Prostheses Give Amputee Runners an Advantage?

A Beginner’s Guide to Amputee Running: Prosthetic Running Feet

Why Running Prosthetic Legs Need to Be Longer than Biological Legs