The Architecture of Protection
A simple idea.
Three engineered components work together to make liquid, lotion or gel instantly accessible from the body, designed for frequent, easy reapplication.
Explore the band. Spin it yourself.
Grab the band or drag the slider. Whatever part you land on gets explained right here, beside the wearable.
The valve that breathes.
Building a valve and gate that could breathe reliably in the tiny footprint of the wrist was a formidable challenge. This breathing mechanism is our core patent, what lets a liquid, lotion, or gel dispense smoothly and consistently from a sealed reservoir worn on the body. Simple to describe, exceptionally hard to engineer, and the foundation of everything WearSpray builds.
One reservoir. Built for real formulations.
The refillable reservoir is engineered from recyclable low-density polyethylene (LDPE), a durable, collapsible core that maintains its shape and breathes for smooth, controlled flow. It is instantly refillable by hand, with no secondary device required, and chemically compatible across a broad range of real personal care products.
- Sunscreen
- Mosquito Repellent
- Sanitizer
- Skincare
- Fragrance
- Lotions & Gels
Flexible reservoir architectureEngineered contours and calibrated wall thicknesses allow the reservoir face to compress, transfer force to the formulation, and return to its original position after actuation. This responsive geometry supports controlled dispensing across a range of liquids, lotions, and gels.
Download the LDPE Material Specifications (PDF)Engineered flexibility. Controlled performance.
Carefully tuned contours and wall thickness create a responsive spring effect within the reservoir itself, no separate spring or pump required. Lab testing and several years of real-world use confirm its durability and structural performance across liquids, lotions, and gels.
That controlled compression moves the formulation through the valve and outlet: a light press delivers a measured application, firmer pressure gives greater force when needed.
At just over one fluid ounce, the reservoir offers meaningful capacity in a compact wrist-worn format, in liquid testing, a full fill produced roughly 99 light-press streams, though real applications vary with viscosity, pressure, and dose.
The result is a refillable dispensing system that combines flexibility, capacity, controlled output, and repeated access throughout the day.
It looks simple now.
That is what great engineering does.
Many specialists looked at the problem.It was difficult.A working solution emerged.
During prototype staging and design, we produced a technical walkthrough for the engineers and injection-molding specialists at our manufacturing facility to review.
At the time we were testing a range of formulations, from thin liquids to lotions and gels, to understand how each behaved through the valve. This particular demonstration used a sanitizing liquid, and the goal was simple: see how many short, controlled bursts a single fill could deliver. The answer turned out to be surprisingly high, a strong early signal for the reservoir and valve working as one.
From Product to Platform
Real hardware. Working today.
This is the core utility: the refillable reservoir, the breathing valve, and the adjustable band (Velcro or silicone). The Safe Band Pro shown here is that utility in its purest form, with no styling applied. Everything built on top of it, the look, the feel, the design, is endless.
Component Gallery
Working hardware, shown across reservoir and valve components. Production units feature refined finishes and an optional silicone band.
Safe Band Pro is the baseline: the core utility with nothing added. What sits on top can be almost anything you can imagine.
The Velcro version carries no design language on purpose, it shows the mechanics in their purest form. With the reservoir and breathing valve as the only fixed elements, the housing, materials, silhouette, and finish become a blank canvas: a rugged field band, a luxury cuff, a fashion accessory, or a fully integrated smartwatch. Partners design the experience; the technology simply powers it.
One band.
A world of functions.
A wearable is only the beginning. Under the surface, WearSpray is a refillable reservoir that carries liquids, lotions or gels, with a growing set of senses being built on top of it.
Holds liquids, lotions & gels
The refillable reservoir dispenses thin liquids, lotions and gels from a single fill.
Breathing valve
A micro-perforated valve meters each controlled burst and reseals between uses.
Biometric sensing
Heart rate, skin temperature and activity, read at the wrist to time your care.
Embedded RFID
Tap-to-identify for access, inventory and secure hand-offs across a fleet of bands.
Connected context
Real-time UV, weather and location from your phone, woven into the right moment.
Adaptive status glow
The reservoir face lights up to show protection at a glance, lit when you're covered.
Refillable LDPE reservoir
A durable, collapsible low-density polyethylene core holds your chosen formula and maintains smooth flow.
Silicone band
A soft, skin-friendly strap built for all-day comfort and wear.
Protective housing
A compact housing engineered to frame and safeguard the reservoir and electronics.
The reservoir and dispensing valve ship today. Sensing, connectivity and identification are in active development and shown here as the near-future direction of the platform.
Chip encapsulated during molding, with no impact on size, look, or dispensing.
RFID, built into the reservoir.
This is not a future concept. An RFID or NFC chip can be over-molded directly inside the WearSpray reservoir today, a straightforward manufacturing step with no impact on the size, appearance, or dispensing function of the device. Paired with compatible readers and software, the wearable becomes a secure digital credential as well as a refillable delivery platform.
Because the chip lives inside the reservoir, the same RFID capability carries over to every WearSpray format, the Velcro and silicone bands, smartwatch integrations, and partner designed products alike. Its most immediate benefit is simple identification: each wearable can be recognized, its refills confirmed, and its issuance recorded, all without showing any personal information on the device.
From identification to research intelligence.
In a community health program, bands would be provided to participants across a region, for example in malaria protection and data research. An RFID or NFC enabled WearSpray could connect each band to a secure research record: documenting when a device was issued, where it was refilled, and when a participant returned for follow up, all without displaying personal information. Readers at clinics and refill stations could give researchers a clearer view of retention, refill frequency, and community level participation.
Explore our Global Health visionPotential Data Collected
- Device issuance & participant enrollment
- Refill dates, sites & formulation batches
- Approximate refill quantity or reservoir status
- Replacement, loss & device return events
- Scheduled visits & participation duration
- Movement through reader-equipped study zones
Additional Environments · Natural Extensions
What It Could Enable
Important accuracy note: RFID does not automatically provide continuous location tracking everywhere. Location awareness depends on the type of RFID technology used, the placement of compatible readers, the software platform, and the organization's privacy and consent policies.
View the issued patentsWearSpray holds issued United States patent protection for a wearable dispensing platform that extends into watch-based integration and body sensing. We believe this represents one of the earliest issued patent positions at the intersection of refillable on-wrist dispensing, skincare and sun care access, and biometric wearable technology.