A clean tennis/court shoe with four electric wheels hidden in the sole. Press a small recessed button and they deploy; lean forward to glide. Charges wirelessly on a dock (and trickle-charges as you walk). This page has the interactive 3D model, the full parts list, prices, and the complete engineering spec — everything a builder or manufacturer needs.
Drag to rotate · Deploy pops the wheels · Inside X-rays the battery + motors + wiring · Parts labels every component · Walk·Charge shows the kinetic sole.
Feels like a normal cushioned shoe. Wheels hidden.
A recessed physical button (not a tap — won't fire while walking). Four wheels deploy.
Glide forward, speed-governed. Forward-only in v1.
Lean back to stop; press again to pull the wheels in. Auto-retracts on stairs.
Wireless dock (~3–5 h). Walking trickle-charges the electronics.
| Spec | Value | Note |
|---|---|---|
| Reference size | US Men's 8.5 | Grades M7–13 across 3 chassis lengths |
| Weight | ~0.9–1.4 kg / shoe | Heavy — "wear it for the ride," not all-day |
| Glide range | ~6–12 km (4–7 mi) | Flat ground, 60–80 kg rider; ~30–60 min riding |
| Top speed | 6 mph (10 km/h, governed) | Firmware-capped for safety |
| Battery | 30–60 Wh Li-poly | In the arch, under a load bridge (you don't stand on it) |
| Charge | Wireless dock ~3–5 h | Walking does NOT recharge the drive battery — it's a trickle |
| Battery life | ~500 charge cycles | Then the pack is swappable |
| Water | IP67 (dust-tight, survives puddles) | Rain + puddle proof; not for swimming |
The core components. The full spec has the complete bill of materials with reference part numbers, wire gauges, and connector pinouts.
| Subsystem | Parts |
|---|---|
| Drive | 4× small BLDC hub-motor wheels (~45 mm PU), 4× ESC motor drivers, 8× bearings |
| Deploy | 4× struts/swing-arms, 4× over-center locks (carry your weight), 2–4× actuators/servos, 1× recessed deploy button (physical, guarded), return springs |
| Power | 1× Li-poly battery 30–60 Wh + BMS, wireless RX coil + controller, PMIC, regen circuit, fuse + e-fuse, thermistors |
| Brain + sensors | 1× MCU (ESP32/nRF-class, BLE), 6-axis IMU (lean sensing), 12× motor Hall sensors, 4× deploy-lock sensors, 2–4× foot-load (FSR) sensors, thermistors, LEDs, haptic, flex-rigid PCB |
| Structure | Carbon load plate, chassis cage, PowerDeck battery vault + load bridge, wiring harness (colour-coded), gaskets, fasteners |
| Walk-to-charge | Heel + forefoot harvester plates, springs, micro-generators, harvest PMIC (optional — can be dropped for a cheaper v1) |
| Shoe | Engineered knit upper, supercritical-foam midsole, rubber outsole, wheel-well covers, insole, laces/closure |
| Included | Wireless charging dock (pair) |
| Quantity | Build cost / pair | Realistic retail / pair |
|---|---|---|
| First ~1,000 pilot (all features) | $340–700 | ~$599–999 (early adopter) |
| 10,000-unit run (mature v1) | $150–320 | ~$299–449 |
| 50,000+ (scaled, leaner v1) | $90–180 | ~$179–299 |
| Just 1 hand-built unit | $2,600–6,400 | ❌ don't — buy/build instead (below) |
| Route | Cost | What you get |
|---|---|---|
| Adapt an existing e-shoe OEM platform (recommended) | ~$20–80k | Custom mold + firmware + branding on an already-tooled, already-certified base |
| Ground-up custom program | $150–500k+ | Invent every part; own every patent; slow |
| Option | Cost | Reality |
|---|---|---|
| Buy existing electric hover-shoes | $100–300 | Works today; closest thing that exists |
| DIY the hoverboard-harvest build | $50–100 | Build it yourself — see the build guide |
The full 900-line document: every part with reference numbers, wiring harness + connector pinouts, all ~25 sensors, system block diagram, assembly sequence, tooling plan, safety FMEA, battery abuse-test matrix, certification list (UN 38.3, UL 2272, FCC/CE…), rider limits, and firmware safe-state logic. It's deliberately honest — it tells the builder this is a concept brief that must be prototyped and safety-tested, which protects the buyer.