How Firefly Works

Firefly actively increases blood flow, naturally easing soreness, improving comfort, and helping you feel fresh, whether after workouts, during travel, or throughout your daily routine.

Firefly uses gentle stimulation to increase blood flow up to 400%

More oxygen and nutrients delivered to your muscles, less soreness holding you back.

How To Use Firefly

Place Firefly below your knee, press start, and get on with your day—post-workout, at your desk, or mid-flight.

Engineered for Recovery

Replicate the circulatory benefits of walking without taking a step.

Target The Nerve

Firefly delivers a precise, painless electrical pulse directly to the peroneal nerve, bypassing the brain to trigger a specific motor response.

The "Flutter" Mechanism

This signal causes the calf muscles to contract and relax, activating the body’s natural muscle pump without putting strain on the heart.

Increase Blood Volume

The muscle pump pushes stagnant, deoxygenated blood from the lower extremities back up to the heart, increasing systemic blood flow by up to 400%.

Flush & Replenish

This surge in circulation flushes out metabolic waste (like lactate) while delivering fresh oxygen and nutrients to muscles to accelerate repair.

Apply Firefly

Place Firefly, press start, and get on with your day. post-workout, at your desk, or mid-flight.

Apply Firefly below your knee.

Turn it on to start gentle pulses that mimic the muscle pump of walking.

Use it after training or during long travel to keep legs feeling fresh.

Feel the Firefly Flutter

You’ll feel a rhythmic 'flutter' in your foot as your Firefly starts working.

Your calf muscle acts like a pump, increasing blood flow by up to 400%—even while you sit.

The “flutter” is your calf doing the work—comfortable and subtle, even on a plane.

That muscle pump boosts circulation to help ease soreness and travel fatigue.

Freedom to Move

Firefly is portable recovery you can use anywhere—so you can train harder, travel easier, and stay ready to move.

Travel: Stay comfortable on flights, road trips, and long days on your feet.

Athletes: Bounce back between workouts, games, and competitions.

Everyday: Wire-free, lightweight, and easy to use while you work or unwind.

Recovery You Can Feel.
Science You Can Trust.

Grounded in physiology, built for real-world use.

FEATURED STUDY

Firefly considerably increased microcirculatory blood flow.

Barts and The London School of Medicine and Dentistry

Read More

Firefly is superior to Intermittent Compression Boots in increasing blood microcirculation.

Microvascular Research

The use of firefly aids the physiological and psychological measures of recovery

Journal of Science and Medicine in Sport

Firefly is superior to graduated compression socks in reducing perceived muscle soreness

School of Sport, Exercise and Health Sciences, Loughborough University

In One Firefly Session

Firefly complements your training schedule. It’s easy to incorporate into any lifestyle or travel itinerary without being tethered to a wall. Train your hardest, then strap on Firefly.

BATTERY LIFE

30 HOURS

WEIGHT

1 OZ

TARGET

PERONEAL NERVE

SENSATION

GENTLE FLUTTER