It looks less like a robot and more like a sports brace. That is the point. Roam Robotics builds soft, air-powered exoskeletons light enough to wear all day - and strong enough to double what your legs can do.
Walk into Roam Robotics' San Francisco shop and you will not find the chrome-and-hydraulics machine that the word "exoskeleton" promises. You will find something closer to a high-end knee brace stitched to a backpack. Air hisses through fabric and plastic. A leg that should be tired keeps going. That is the company in one sentence: robotic strength, minus the robot costume.
Roam now sells across three worlds that rarely share a customer list - skiers who want one more run, patients whose knees have quietly betrayed them, and soldiers carrying loads no human should. The thread connecting them is not a market. It is a problem.
The first generation of powered exoskeletons solved a real problem with the wrong materials. Steel frames and electric motors could lift a person, but they were heavy enough to need their own battery to carry their own weight - and priced like a luxury car. Wonderful for a clinic. Useless on a mountain, a battlefield, or a Tuesday.
Tim Swift had watched this up close. As one of the original three engineers behind Ekso Bionics' lower-body exoskeleton, he helped build the metal version. Then he reached an inconvenient conclusion: the metal was the problem.
In 2012, spinning out of the San Francisco invention lab Otherlab, Swift made a wager that sounded faintly absurd: that you could build a powerful exoskeleton out of the lightest, cheapest stuff available - fabric, plastic, and compressed air. Instead of motors, pneumatic actuators. Instead of a rigid frame, something soft that moves with the body and gets out of the way.
The wager had a tidy logic. If a robot is light and cheap, ordinary people can actually wear it. If ordinary people can wear it, the market is no longer a handful of hospitals - it is everyone with a tired knee.
PhD in mechanical engineering from UC Berkeley. One of the original three-person team that invented Ekso Bionics' lower-extremity exoskeleton, then left to build a lighter, metal-free alternative. Spun Roam out of Otherlab.
The same core - air actuators, sensors, smart power algorithms reading the wearer's intent - shows up wearing three different uniforms.
The first product, built for skiers. Cuts knee pain and muscle fatigue so you can ski longer and stronger. Offered as demo rentals in Lake Tahoe and Park City - exoskeletons you could rent like skis.
A smart robotic knee brace for people with osteoarthritis. Sensors read your movement and add power exactly when standing, walking, or climbing stairs gets hard. NPR called it a potential game changer for millions.
The ruggedized version for military and first responders. Modular, rechargeable, built with 3D-printed aluminum. Roughly 2x strength and endurance, and up to 50% fewer g-forces on the wearer.
Tim Swift leaves the metal-exoskeleton world to bet on fabric, plastic and air.
The first product targets skiers, offered as demo rentals in Tahoe and Park City.
Yamaha Motor leads, joined by Menlo Ventures, Valor Equity, Spero, Boost VC and others.
Defense work proves soft exoskeletons can be light and powerful - the seed of Forge.
The smart knee orthosis brings the technology to osteoarthritis; a VA testing partnership follows.
Featured at Amazon re:MARS; positioned for military and first-responder performance.
ROAM OA trial at Rush University studies the knee brace for medial-compartment osteoarthritis.
A press release can claim anything. A clinical study and a load test are harder to argue with. Here is what the devices actually moved.
Lead investor in the $12M Series A. Better known for motorcycles and pianos - now backing legs.
Early defense project that proved soft, air-powered exoskeletons could be both light and strong.
Testing exoskeletons to improve safety and retention for aerial porters and other heavy-lifting roles.
Partnered to test the robotic knee brace with veterans.
Running the ROAM OA clinical trial on the knee brace for osteoarthritis.
The San Francisco invention lab Roam spun out of - and where the air-actuator idea grew up.
Roam's stated mission is to reinvent human possibilities. Underneath the slogan is a plainer goal: make wearable robots cheap and light enough that wearing one stops being remarkable. Not a medical device guarded behind a clinic door. Not a $100,000 research curiosity. Something closer to a tool you pick up because your knee hurts and you have stairs to climb.
That ambition is why the same company sells to skiers and SEALs. The point was never one heroic market. It was proving the technology could be light, affordable, and human-shaped enough to go anywhere.
Populations are getting older and knees are not improving. Osteoarthritis already limits the lives of millions, and the usual options run from painkillers to surgery. A light, affordable brace that adds power exactly when a joint needs it sits in the gap between doing nothing and replacing the joint. That gap is enormous.
Meanwhile the defense and industrial demand for human augmentation is not slowing down. Roam built one engine that speaks to both. Whether it wins is an open question - the exoskeleton field is littered with companies that promised more than physics delivered. But the bet on lightness has aged well.