The sole becomes the generator. High-density kinetic harvesting engineered for performance boots, tactical footwear, and field operations where every watt counts.
Trektion exists to give operators, workers, and adventurers a continuous, body-powered energy source that does not depend on solar, grid, or disposable cells. By concentrating high-output transduction into a rigid, load-rated sole module, we convert the unavoidable force of every stride into usable electricity while preserving gait, comfort, and structural safety.
Extend radio, GPS, sensor, and lighting runtime without adding battery weight. Ideal for multi-day patrols, remote industrial sites, and expeditionary use.
Lead-free piezoelectric ceramics, full electrical isolation, limited displacement (≤ 4 mm), and biomechanically tuned compliance so the boot still feels like a boot.
Stacked piezo + electromagnetic induction under the heel and midfoot capture both high-force impact and relative motion for superior peak and average output versus soft polymer systems.
The generator lives as a sealed cartridge inside a reinforced chassis. End-of-life recovery and field swap remain straightforward.
Trektion uses a dual-mode rigid module. Primary conversion is mechanical-to-electrical via lead-free piezoelectric stacks. Secondary conversion uses electromagnetic induction from controlled relative motion between a floating load plate and fixed coils. Both paths feed a common power-management and storage layer.
Heel strike drives a floating load plate downward 3–4 mm against stacked lead-free piezo ceramics. High d33 materials generate an immediate high-voltage pulse proportional to force and velocity.
As the plate moves, permanent magnets pass through copper coil arrays. Electromagnetic induction produces additional current during both compression and rebound phases.
AC spikes are rectified and smoothed by a high-efficiency power-management IC. Energy is immediately accepted by solid-state graphene supercapacitors that tolerate rapid, irregular input.
Stored energy is delivered as stable 5 V / 12 V DC through sealed connectors or optional low-power wireless. Local telemetry reports state-of-charge and harvest rate.
The Trektion module occupies the midsole and heel region of a performance or tactical boot. A rigid outer chassis protects the active stack while a controlled-compliance interface maintains natural gait.
High-strength composite plate distributes impact force evenly across the transducer array. Travel limited to 3–4 mm for gait comfort and structural longevity.
Multi-layer potassium-sodium-niobate (KNN) or equivalent high-d33 ceramics. No lead content. Optimized for compressive loading under heel and midfoot.
Permanent magnets fixed to the load plate move through copper coil windings during every compression and rebound cycle, adding continuous secondary generation.
Solid-state graphene supercapacitors accept chaotic high-rate input. Integrated PMC provides rectification, voltage regulation, over-current protection, and status telemetry.
Anodized aluminum or high-modulus composite shell. Full epoxy potting and gasketed interfaces achieve IP68. Shear pins protect internal stack under extreme lateral loads.
Target values for a standard tactical / hiking boot integration (size 10 / EU 44).
| Parameter | Value | Notes |
|---|---|---|
| Peak Instantaneous Power | 2 – 5 W | Aggressive heel strike, loaded condition |
| Average Power (brisk walk) | 300 – 800 mW | Depends on cadence, body mass, terrain |
| Displacement Limit | ≤ 4 mm | Preserves natural gait & comfort |
| Module Mass Penalty | ~180 – 260 g per pair | Vs. conventional midsole |
| Operating Temp | –20 °C to +55 °C | Field-rated |
| Ingress Protection | IP68 | Continuous immersion capable |
| Piezo Material | Lead-free KNN / equivalent | No Pb content |
| Storage | Graphene supercapacitor bank | >500 k cycles, rapid charge acceptance |
| Output | 5 V / 12 V regulated + telemetry | Sealed connector or optional wireless |
The Trektion module is engineered as a drop-in midsole cartridge. Dimensions and mass are kept within the envelope of a modern tactical or hiking boot so the wearer notices performance, not bulk.
Target geometry for a US Men’s 10 / EU 44 integration. Scales proportionally across sizes.
Heel-centered active zone. Covers primary impact and push-off regions without extending into the flexible forefoot.
Includes 3–4 mm of controlled travel. Overall boot stack-height increase kept to ≤ 10 mm versus a conventional midsole.
180–260 g per pair. Comparable to the difference between a light hiking boot and a lightly loaded tactical boot.
Based on a realistic average harvest of 300–800 mW during brisk walking or loaded movement. Continuous low-draw devices run indefinitely; higher-draw devices accumulate usable charge over hours of activity.
Continuous operation with margin. Typical 50–150 mW draw is fully covered even at the low end of harvest range.
Receive mode sustained for multi-hour shifts. Transmit bursts are buffered by the supercapacitor bank.
Low-to-medium LED output (1–3 W peak) can run for extended periods when walking; stored energy covers stationary use.
Environmental sensors, heart-rate, or intermittent body-worn camera recording are well within continuous budget.
Under heavy all-day movement a modern phone can gain roughly 10–25 % capacity. Useful emergency top-up, not primary charging.
Smartwatch, earpiece, or short-range mesh radio nodes stay powered indefinitely from normal walking cadence.
Pricing reflects the cost of lead-free high-performance piezo stacks, precision electromagnetic components, graphene storage, IP68 sealing, and low-volume initial production. Volume scaling will reduce both module and complete-boot pricing.
Sealed generator cartridge only. Intended for integration by boot manufacturers or specialized outfitters. Includes power-management board and sealed output connector.
Full performance or tactical boot with factory-integrated Trektion module, reinforced chassis, and user-accessible charge port. Pricing varies with upper materials and protective features.
Recommended MSRP is for concept-stage planning. Final pricing will be set after pilot production, certification (IP, drop, flex, and biomechanical validation), and confirmed bill-of-materials costs. Military / bulk contracts are expected to sit meaningfully below consumer MSRP.