Work & Duty
- All day comfort / use
- On-the-job protection: puncture resistant / cold weather
- Made in USA / Berry compliance
THE INSOLE
This is an insole.The safest and best one.
Heelium is a physics-driven insole platform engineered to manage impact force at the foot–ground interface, not just cushion it.
01 — The Problem
The uncomfortable truth.
Footwear impact protection optimizes the wrong variable.
The industry equates protection with softness. Compression is treated as a proxy for safety, storing energy rather than managing it. Injury and fatigue persist despite decades of material iteration.
Comfort has improved. Impact protection has not.
02 — What The Data Says
Impact injury correlates to peak force, not cushion thickness.
Peak G and impulse duration matter more than total deflection. Rapid rebound amplifies transmitted force, and repetitive sub-injury loading drives fatigue and joint damage over time.
Absorption
- Stores energy.
- Prioritizes feel — comfort driven.
- Rebounds quickly.
Dissipation
- Manages energy over time.
- Prioritizes force control.
- Extends impulse duration.
Absorbing energy without controlling its release results in incomplete protection.
03 — The Technology
Energy is managed, not merely compressed and returned.
- Rate-Sensitive Response
- Reacts to impact velocity, not just load.
- Force–Time Curve Shaping
- Controlled shaping of the impact profile.
- Peak Force Reduction
- Lowers transmitted force at the interface.
- Repeatable Performance
- Consistent behavior across impact cycles.
- Tunable by Segment
- Athlete, worker, lifestyle — dialed in.
04 — Why The Insert
The fastest way to correct a systemic error.
The insert sits directly at the foot–ground interface, independent of outsole and upper tooling. That independence enables rapid iteration and validation, and lets us tune performance by use case without redesigning a shoe. It is a platform entry point — not a dead end.
05 — Product Categories
Tuned for the ground you cover.
All Purpose
- Accessible performance
- Everyday impact management
Sports, Active & Outdoor
- Ultralight, low profile
- Controlled energy return