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28U24 - Ankle-Foot orthotics

WalkOn Reaction

Dynamic appearance
People with permanent drop foot depend on a device that lifts their foot while walking.That is precisely what the WalkOn Reaction does. The carbon orthosis helps to lift the foot during the swing phase, making the gait safer while reducing the risk of stumbling and falling. The tip of the foot no longer gets caught as easily on small obstacles or uneven ground.Thanks to its special design, the WalkOn Reaction supports the knee joint as well. When the foot lowering musculature is impaired as well, you also benefit from the high energy return of the orthosis, which is activated during the rollover motion of the foot. This lets you walk more naturally again.
Terms and conditionsStroke, other, Multiple sclerosis, Neurological disorders
User groupadults
ApplicationsBracing & Support/ (OTS)
All specifications
Benefits at a glance

WalkOn Reaction – lightweight, balancing, robust

Henning_WalkOn Reaction_ walking
Walk more naturally

The WalkOn Reaction enables a nearly physiological gait. Depending on your current phase in the gait cycle, extension and flexion of the knee is supported by the special structure (frontal contact) of the orthosis. Your gait pattern becomes smoother.

Henning_WalkOn Reaction_movement
Fewer compensating movements

Compensating movements can lead to signs of wear. The WalkOn Reaction reduces these with its high energy return. You walk more symmetrically, because the orthosis stores energy at heel strike and releases it again during the rollover movement of the foot.

Henning_WalkOn Reaction_unevenness
Enhanced safety

You gain safety because the WalkOn reaction supports and lifts your foot in the swing phase while walking. The risk of getting caught with the tip of the foot, for example on carpet edges or uneven ground, is reduced.

Henning_WalkOn Reaction_putting on the orthosis
Use regular footwear

The orthosis fits in any shoe that provides support. You should merely ensure that the shoe has a reinforced heel. To put on the orthosis, you should position the WalkOn Reaction in the shoe and then slide in with your foot.

WalkOn Reaction_lightweight and discreet
Lightweight and discreet

The WalkOn Reaction is lightweight, slim and discreet under clothing. A shin pad makes it even more comfortable for you.

Henning_WalkOn Reaction_durability
Robust and durable

The WalkOn Reaction is especially robust. It has proven its durability in trials and long-term function testing.

User Experience

For everyone who wants more / The ideal companion

Henning’s user story

Henning plays a lot of sport, swims, hikes, rides mountain bike, enjoys going dancing with his wife and also likes to try new things, such as stand up paddle boarding. But he isn’t taking any of this for granted since he had a serious traffic accident. The WalkOn Reaction dorsiflexion assist orthosis makes it possible for him to move more naturally and lead an active life.


Learn More

Two women sit outside while catching up. One wears the Ottobock Genu Arexa on her left knee.

Leg and Knee Orthotics

Learn about the different leg and knee orthoses, how to wear orthoses, and more.

Learn more

Product information

Terms and conditionsStroke, other, Multiple sclerosis, Neurological disorders
User groupadults
ApplicationsBracing & Support/ (OTS)

Product Data

Article numberShoes size menShoes size womenShoe size europeSideHeight
28U24=L36-394.0 - 6.55.5 - 8.036 - 39left (L)13.11 ″
28U24=R36-394.0 - 6.55.5 - 8.036 - 39right (R)13.11 ″
28U24=L39-426.5 - 9.58.0 - 11.039 - 42left (L)13.98 ″
28U24=R39-426.5 - 9.58.0 - 11.039 - 42right (R)13.98 ″
28U24=L42-459.5 - 11.011.0 - 12.542 - 45left (L)14.84 ″
28U24=R42-459.5 - 11.011.0 - 12.542 - 45right (R)14.84 ″
28U24=L45-4811.0 - 13.512.5 - 15.045 - 48left (L)15.75 ″
28U24=R45-4811.0 - 13.512.5 - 15.045 - 48right (R)15.75 ″



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Ankle-Foot orthotics-28U11
28U11Ankle-Foot orthotics
Foot drop can occur after a stroke, traumatic brain injury, or result of multiple sclerosis, neuromuscular atrophy, or peroneal paralysis. Lightweight and durable, the WalkOn ankle foot orthosis is designed to help lift and support light to severe drop foot. This lower leg orthosis will allow you to complete everyday tasks, like walking up and down stairs, easily and more naturally. You won’t have to worry about your orthosis being seen either—the sleek and discreet design ensures you can fit the WalkOn inside any shoe or under any pant leg.