Sunflower Robotics

The Michelin
For Robots

The performance layer between humanoid robots and the ground.
Feet are where locomotion succeeds or fails. We make the interface.

One Interface. Every body, human or robot.

The lattice, in motion

A $38B market is shipping
on rigid flat feet

Every humanoid platform needs a sole. We make the only one built for safety and efficiency.

$0B Humanoid market by 2035
0+ Commercial OEMs shipping today, all on rigid flat feet
×0 Soles per robot, replaced regularly: recurring revenue by design
Sunflower's black compliant sole held in two hands, hexagonal lattice backlit
The problem

Flat feet are draining humanoid batteries

RIGID FLAT FOOT TODAY

Every step is a collision

Flat feet → torque spikes → higher current → I²R losses → battery drained, actuators worn.

OUR COMPLIANT SOLE

Every step returns energy

Adaptive geometry → smooth torque → lower current → less loss → longer runtime, longer service life.

03 The platform

From human feet to robot feet

One geometry, engineered for humanoid loads.

One geometry, many interfaces

HelmetsSaddlesHumanoid robot feetHumanoid robot hands
Why us

First sole engineered for humanoid biomechanics

01

Patent on the method

We didn't patent a sole. We patented the torque reduction method at ground contact. The performance gain is what's protected, not the product form. USPTO non-provisional filed.

02

Real hardware data

Every pilot feeds our parametric model. Physical lattices, cycle tested on the bench. Every OEM pilot feeds the parametric model, building a dataset no one else has.

03

Design maturity

Years iterating compliant flexure mechanisms. New entrants start behind, hit our learning curve on day one, and can't catch up without our accumulated data.

How we work

Design. Manufacture. Ship. Three weeks end to end.

INTAKE

OEM shares specs

Robot model, mass, gait, mission, terrain, fleet size. NDA signed. We validate fit.

ENGINEER

We design and simulate

Parametric compliant geometry, tuned in MuJoCo, signed off before a single part is cut.

DELIVER

We manufacture and ship

Validated supply chain, certified parts. The OEM installs and measures. We iterate on the data returned.

Closed service. No open source, no design files leave our hands. The OEM gets the product. We keep the IP.

Put soles on your robot

Email us →