Firefly Starter Packs

Increases Circulation

Firefly Starter Pack

Achieve better performance and faster recovery with improved whole-body circulation.

Clinically Proven

FDA Cleared

TSA Friendly

Choose Your Pack

What's Included

Firefly is portable, wire-free recovery you can wear anywhere—especially on long travel days when you’re sitting for hours.

It uses wearable NMES to stimulate the peroneal nerve and create gentle muscle pumps that boost blood flow up to 400%.

That extra circulation supports recovery, helps ease post-workout soreness, and keeps your legs feeling fresher so you can train harder, travel easier, and stay ready for what’s next.

FDA-cleared and designed to fit seamlessly into your routine.

Athletes, travelers, and anyone who wants legs that feel fresh.

Travelers: wear it on flights, long drives, or airport days to help keep legs feeling good.

Athletes: use it to support recovery between hard sessions and during heavy training blocks.

Everyday: great for commutes, desk days, or time on your feet.

Travel better: helps beat travel fatigue and keeps legs feeling lighter on long flights and drives.

Recover faster: support recovery (up to 3x faster) so you’re ready for your next workout.

Boost blood flow: enhances circulation up to 400% with gentle muscle stimulation, similar to walking.

Eases soreness: helps reduce post-workout soreness and downtime.

Fits your day: portable, wire-free, and easy to wear while you refuel, work, stretch, or move.

Pro-level trust: used by 1,300+ professional and college teams.

Place Firefly just below your knee and turn it on by pressing the + button.

Adjust intensity until you feel gentle, comfortable contractions in your foot.

Travel: wear during long flights and drives.

Warm-up: 30–60 minutes before training.

Post-workout: 1–4 hours after activity.

Overnight: wear while you sleep for additional rest and recovery.

Wire-free and easy to wear anywhere, with up to 30 hours of run time per device.

Each Firefly device provides up to 30 hours of run time. Firefly is wire-free, lightweight, and easy to wear on the go.

Boost circulation and feel your best.

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.

Increase Circulation While Traveling

Recover Faster After Workouts

No Wires Holding You Back

Easy To Apply & Use

Use 30 Hours Per Device

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

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

Make travel comfortable.

Long flights and long drives can leave legs feeling heavy because circulation slows when you’re sitting for hours. Firefly creates gentle muscle pumps to support active circulation—helping you arrive feeling fresher and more comfortable.

Wear it while seated, during layovers, or after you land. Portable, wire‑free, and easy to use anywhere.

Feel better stepping off a long flight.

Firefly is recovery you can pack. It boosts blood flow up to 400% with gentle, walk‑like contractions—helping beat travel fatigue and keep legs feeling light when you land.

Trusted by 1,300+ professional and college teams.

Active circulation for travel days.

Turn it on before takeoff, during a long drive, or after you arrive. Let it run in the background while you work, stretch, or walk around—up to 30 hours per device.

Less soreness. More readiness.

Performance is built on recovery. Firefly mimics your body’s natural walking motion, boosting circulation by up to 400% so your muscles bounce back faster and you’re ready to perform at your best again sooner.

Use it for 30–60 minutes pre‑training, or wear it for 1–4 hours post‑workout to help take the edge off soreness and feel ready for the next session.

More training days. Less downtime.

Built by athletes for athletes, Firefly delivers pro‑level recovery in a portable, wire‑free form. Grounded in clinical research and trusted by 1,300+ elite teams, it keeps blood moving so legs feel fresher—day after day.

Recovery that easily fits into your training life.

Wear it for 1–4 hours after training while you refuel, work, stretch, or move around. Consistent recovery helps keep legs feeling light and ready for your next session.

Why Firefly beats the alternatives.

Features		Compression Socks	Compression Boots	TENS Unit
Active Circulation	Yes	No	Yes	No
Truly Wireless	Yes	Yes	No	No
Fully Mobile	Yes	Yes	No	No
Easy To Put On	Yes	No	No	No
Non-Fatiguing	Yes	Yes	Yes	No
Adjustable Intensity	Yes	No	No	No
Comfortable	Yes	No	No	No

Your body wasn’t built to sit still.

After just 6 hours, prolonged sitting can reduce lower leg circulation by up to 38%.

Source: Peddie et al. PLOS ONE. 2021;16(1):e0244841.

Sitting

Firefly

Firefly is clinically proven to boost blood flow by up to 400%, keeping you at your best wherever you are.

How To Use Firefly

Apply Firefly

From your outside ankle bone, move up the leg toward your knee and locate the small round bone (fibular head).

Turn It On

Press the (+) button and select your intensity level. No apps, no wires, and no hassle. Just instant, portable relief.

Feel The Flutter

You’ll feel a gentle rhythmic tap, not a shock. A slight foot twitch confirms it’s working to boost blood flow by 400% and flush out fatigue.

Over 100,000+ Satisfied Customers

Proven recovery device at the top of the Seven Summit

We are Seven summiters and used Firefly device to recover faster at Mt.Aconcagua, Mt.Elbrus, and Mt.Fuji. It is so light and battery lasts 30 hours and can work even in cold harsh condiitions at high altitude. From flying in longer hours to climbing above 22,000 feets, we trust our Firefly.

A great recovery tool for triathletes

As a triathlete, I have multiple training sessions a day, so in between I do all I can to recover. When I wear firefly after a ride before a run, for example, I can genuinely feel a freshness in my legs during that run. Also, flying with firefly on is one of my favorite ways to also use the product! Total game changer!

The best device for travel and recovery!!

As a track athlete who lives in Hawaii I fly for every competition. After using firefly during my travel days I show up ready for competition without heavy legs from the long flight! I will forever be using firefly

Undeniable

I have never felt so good on a flight or aftwards. I have been traveling internationally for 20+ years and truly never felt better. First used on a 14+ hr flight and never an ache or soreness. Legs felt fresh and more importantly buttocks, back and rest of the body felt equally as good! I won't fly again without them!

Life Changing

I have used these on multiple occasions for travel, traveling on plane and long car rides my body normally feel so tired, heavy and sluggish, but with the firefly’s I can get off a plane and be ready for a training session feeling good! I travel a lot for sports and this has been a game changer

Firefly Changed the Game!

As a D1 track and field athlete who works full time AND has a puppy in addition to my studies & sport, it is hard for me to find time to recover... However, firefly has changed the game. I can recover during work, travel and relaxation time with almost no effort. Drastically helped.

Best Recovery Device for Runners!!

Firefly Recovery has been an absolute game-changer for my performance and recovery as a Division 1 distance runner. At this level, every training session counts, but so does every hour of recovery. Firefly allows me to train hard, bounce back faster, and show up ready for the next session with less soreness and fatigue.

A great recovery tool for triathletes

Complete Recovery

Having two ACL surgeries as a division 1 lacrosse player training every single day. In conference playing Friday and Sunday games. Recovery is just as important for me as training. Firefly Recovery has changed my life. My legs have never felt better so thank you Firefly for making my life as a college athlete so much better.

The best device for travel and recovery!!

User for life!!

As a D1 track and cross country athlete, I love having firefly recovery with me during workouts all year round! It is extremely helpful with shortening my recovery period so that I can get back to the next workout with fresh legs! Have been using this product for years and will continue to use for my entire running career!

Game changer!

As a professional ballet dancer, I need my legs to recover quickly. I love these devices because I can prioritize recovery whether on the go or sitting on my couch at the end of a long rehearsal day. I would recommend these to everyone - athletes, moms on the go, EVERYONE!

Life Changing

Firefly Changed the Game!

Complete Recovery

Game changer!

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

Built To Support Circulation.
Proven By Science.

Clinically Proven. Not Magic.

FEATURED STUDY

Firefly considerably increased microcirculatory blood flow.

Barts and The London School of Medicine and Dentistry

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

Frequently asked questions

We suggest using the Firefly for the duration of travel to promote blood flow and avoid tired legs. The Firefly device can safely be worn or carried through TSA security.

At the correct level, you should see an outward movement of the foot (the Firefly "flutter"). If you only see muscle twitches in the lower leg but not the foot, increase the level by pressing the (+) button or adjust the device placement. It is optimal to wear the Firefly at the lowest setting that delivers a “flutter”.

Press and hold down the (+) button for 1-second to turn the device ON.

Press and hold down the (-) button for 3-seconds to turn OFF your device.

Recommended usage will optimize recovery so you can train harder and perform better. Firefly Recovery is used for warm up (30-60 minutes) post workout recovery (1-4 hours) and travel (duration of travel).

Must Have for Athletes

The Firefly recovery devices have become part of my everyday recovery routine as a student athlete. They help keep my legs feeling fresh and ready to go, especially during busy weeks of training and practice.

Thanks so much for sharing your positive feedback, Liam! We're really glad to hear Firefly is helping you stay fresh and ready for training and practice.

Best recovery products out there!

I’m a division 1 soccer player and I know how intense the season gets. Most weeks we have up to 2-3 games so recovery is literally what decides your performance. Since using firefly for my recovery, I haven’t been able to turn back. It helps me tremendously during season and even in the off season. I recommend to all and I’m sure I will keep on using it!

Thank you so much and we completely understand how much recovery matters when you are playing 2 to 3 games a week at the D1 level! We are so thrilled Firefly has become such a trusted part of your routine year-round and we cannot wait to keep supporting you through every season ahead.

Perfect for recovery on the go!

As a professional fencer, a typical season consists of traveling to at least 5 different countries and 5 states across the US for tournaments. Spending this much time in the airport used to take away from recovery time, now with FireFly it’s a whole different story! When flying 10+ hours to competitions I can ensure I land with fresh legs thanks to FireFly. Also, when traveling back home post tournament my legs no longer have to suffer in the plane. I would absolutely recommend this to not only athletes but anyone who travels.

Thank you so much for this incredible review, Caterina, and we love that a professional fencer competing on the world stage trusts Firefly to keep her at her best!

Worked great on recent trip

I ordered the Ultimate starter pack for my partner and I on our recent international trip. It worked well. My only gripe is that I wish the Ultimate came with two pairs of accessory straps.

Thank you so much Kyle and we are so glad Firefly delivered on your international trip for both of you! We really appreciate the feedback on the accessory straps and will absolutely make sure that gets passed along to our team.

Excellent product

I use these daily to help relieve my sensation of heavy legs from long Covid. They help my legs recover from my activities or daily living.

Thank you so much Carrie and we are so glad Firefly has been able to make such a meaningful difference in your day to day life! Knowing that it is helping you feel your best and keep up with everything life throws at you truly means the world to us.

These reviews are submitted by users of the product and reflect their personal experiences. This product is approved by the FDA only for the uses listed on its official labeling. Any other uses mentioned have not been evaluated or approved by the FDA.