The World's Smartest, 
Strongest, and Most Comfortable Knee Exoskeleton

  • Ultra Version (Dual)

    Frequent Outdoor Sports, Long-Distance Trekking,
    High-Intensity Activities

  • Pro Version (Dual)

    Daily Mobility, Light Workouts, Casual Hiking

Smartest Support,  Instinctive Response

PowrKnee doesn’t just react — it understands you.
Powered by fusion sensors and adaptive AI, it reads your movement in milliseconds and delivers precise, seamless assistance exactly when you need it.
From every step to every climb, PowrKnee moves in sync with your body — smart, natural, and effortlessly intuitive.

0.001s instant response

Powered by the Yrobot SymbioNet Adaptive Controller (SNAC), PowrKnee adapts within milliseconds - delivering support right when you need it for stronger climbs and softer descents.

TREKKING Trek All Day,With Ultra-Light Comfort BACKPACKING Go Further With Quick-Swap Battery EVERYDAY ACTIVITIES Versatility for Every Step RELAXATION Relax Mode massages your legs to restore energy and prepare you for the next journey.

Hike farther with less fatigue

  • Image image
    Hike farther with less fatigue.

    Gives you the endurance to climb higher, descend safer, and embrace every trail with confidence.

  • Image image
    Hike farther with less fatigue.

    Gives you the endurance to climb higher, descend safer, and embrace every trail with confidence.

  • Image image
    Hike farther with less fatigue.

    Gives you the endurance to climb higher, descend safer, and embrace every trail with confidence.

1 of 2

We aim to use the best materials possible

Sustainability and performance, we believe they go hand-in-hand. Reducing our carbon footprint is a core philosophy at Rockay, and one of the biggest factors is the materials we use in our socks, sleeves, apparel and accessories. Wherever we can, we use recycled and sustainable materials and technologies.

Testimonials

"I can feel it's helping me straighten my
knee. As i'm bringing my way up, it adds
a very large amount of boost. On the
descent, I feel like l can almost sit on it,
just like a chair supporting me. lt's really
fun to see how much l can lean on it."

David

"Feel pretty comfortable. Don't feel any
restrictions...lts synchronising very well.
On the way up, it feels someone is kind
of pushing on your individual steps!"

Aditya

"I didn't really feel that there was a
machine or some type of assistive
device on me. lt felt very comfortable.
I didn't feel any weird locking or
awkward movement in my leg."

Mary

1 of 3

Write the customer story here. Keep it concise and honest.

Julien B.
PowrKnee

Write the customer story here. Keep it concise and honest.

Julien B.
PowrKnee

Write the customer story here. Keep it concise and honest.

Julien B.
PowrKnee

Write the customer story here. Keep it concise and honest.

Julien B.
PowrKnee

Write the customer story here. Keep it concise and honest.

Julien B.
  • Expert Review-Sami Luo Tech

    “I tested the Yrobot PowrKnee exoskeleton on steep trails—itssmart modes and 1520W motormade climbing effortless. Truly next-level gear!”

  • Actual Testing-Electric Revolution

    “It doesn’t feel real. I’m like a robot! I could do a wall sit forever...That’s awesome! It definitely pushes you up, but you really feel it when you step up onto something!”

  • Scientific Proof

    “Medical-gradeCOSMED K5 testing proves PowrKnee reduces metabolic cost, helping you conserve energy and ease physical strain—so you can hike farther with less fatigue.“

  • Beta Tester

    "It’s unbelievable — what an amazing experience! The support feels so natural, perfectly following every step I take. With this on, I feel like I could go anywhere — it’s freedom, powered by technology.”

  • Beta Tester

    “It’s honestly such a fun experience. I can actually feel a force lifting my thighs every time I move — it’s like the device knows what I’m trying to do. Running and climbing stairs suddenly feel effortless, almost like I’ve got an extra set of muscles helping me out.”

  • Sound Level Test

    The world’s quietest exoskeleton — its motor runs at just 20 dB, as silent as turning a page.

  • Beta tester- 75 yrs old

    It is not cumbersome, not restrictive for an old, just give a gentle assist, and every little bit helps when you're my age.

  • Beta Tester - the old

    "I don't feel any negative impact at all, on my hip that was replaced, om my back, any part of my body. So that's a good thing."

Beta Tester

"I didn’t really feel that there was a machine or some type of assistive device on me. It felt very comfortable. I didn’t feel any weird locking or awkward movement in my leg."

Mary
Mary
Beta Tester

"I can feel it’s helping me straighten my knee. As I’m stepping up, it adds a very large amount of boost. On the descent, I feel like I can almost sit on it, just like a chair supporting me. It’s really fun to see how much I can lean on it."

David
David
Beta Tester

"Feels pretty comfortable. I don’t feel any restrictions...Its synchronising very well. On the way up, it feels like someone is kind of pushing me on each individual step!"

Aditya
Aditya

COSMED K5

This is the COSMED K5, a highly recognized portable metabolic testing device used worldwide.
We use the K5 to measure and compare energy consumption with and without the PowrKnee exoskeleton, to clearly show how PowrKnee helps save physical effort.

About Us

Yrobot is a pioneering wearable robotics company founded by PhDs and Masters from Harvard and MIT, dedicated to restoring and enhancing human mobility through advanced wearable robotic technology.