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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

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What's Included

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How subscriptions work
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  • Your first refill arrives {starts}, then {cadence} at {price}.
  • Skip a delivery, change how often it arrives, or cancel — anytime, from your account. No fees, no minimum.
  • We email you a few days before every charge, so nothing arrives unannounced.

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What is Firefly?

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.

Designed for repeated use during its 30-hour lifespan, each Firefly device is ready to wear and requires no charging. Use your Firefly as needed across recovery sessions, then replace it once the battery life has been used. Firefly is not rechargeable.

Who's it for & why

Built for athletes, travelers, and anyone who wants to recover faster, boost circulation, and feel fresher.

Travelers: wear it on flights, long drives, or airport days to beat travel fatigue and arrive feeling fresh.

Athletes: supports recovery up to 3x faster between hard sessions and helps ease post-workout soreness, so you’re ready for the next one.

Everyday: portable, wire-free, and easy to wear at your desk, on your commute, or whenever your body needs a boost.

Why it works: gentle muscle stimulation boosts blood flow up to 400%—similar to walking—to support your body’s natural recovery. Trusted by 1,500+ professional and college teams.

See our Instructions For Use for safety and usage guidance. Firefly should not be used if you have a current DVT or pacemaker.

How to use

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.

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.

*Lower-limb microcirculatory blood flow, clinically proven.

Firefly is proud to partner with Fiji Airways as part of Fly Well, their in-flight wellness program designed to help travelers feel better on long-haul flights. By supporting healthy circulation while you sit, Firefly helps make travel more comfortable from takeoff to landing.

Why Firefly beats the alternatives.

Features
Compression Socks
Active Circulation
Yes
No
Easy To Put On
Yes
No
Adjustable Intensity
Yes
No
Comfortable
Yes
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.

62%
Sitting
400%
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

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

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

Frequently asked questions

Can I wear Firefly during travel?

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. See how Firefly works for travel

How do I find the correct level of stimulation?

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”.

How do I turn the Firefly on and off?

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.

When and how long should I wear the Firefly devices?

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).

  • 5 stars: 2099 (90%)
  • 4 stars: 167 (7%)
  • 3 stars: 21 (1%)
  • 2 stars: 15 (1%)
  • 1 star: 18 (1%)
Some of the reviews shown are from related products the merchant grouped with this one.
S
Soleil Warner (United States)
The Essential to My Routine

Firefly has done wonders for my recovery as a D1 sprinter. Especially during competition rounds where racing happens back to back, speed endurance practices, and long lift days, Firefly has reduced soreness and made my legs feel 100% recovered and fresh overnight. It is a game-changer on flights and it has honestly gave me so much confidence when entering bigger competitions where I am doubtful of how my legs will perform. With Firefly, I am confident in my speed and assured that I will bring my best ability to every training session and race.

Thanks, Soleil! Fresh legs and full confidence going into competition, we love hearing that. Good luck out there, we are cheering you on!

D
Dzintra Grech (Malta)
Hyrox & Runner 🏃

It’s has been such a game changer in my recovery ❤️‍🩹 As a Hybrid Athlete, I compete quiet often and training has been very intense, so with the Firefly’s devices I’ve managed to keep up with my training load without getting injured☺️ At the moment using them after my training sessions and while traveling to compete 🙏

Thanks for sharing your experience, Dzintra! We are really happy to hear Firefly has been such a game changer for keeping up with such an intense training. We hope to keep supporting you through every competition, good luck out there!

K
Kristen S. (Germany)
Adding firefly to my recovery routine!

I’ve really enjoyed using Firefly during my ACL recovery! Getting back on the court is a long process, so I’m always looking for ways to help my body recover and feel its best. Firefly has been a great addition to my routine. I love how easy/convenient they are to use! Definitely recommend for all athletes- great recovery device!!

Thanks for sharing, Kristen! Really happy to hear Firefly is helping. We are cheering you on!

N
Natasha Bowyer
Long haul flight

I used them for a long haul flight and my legs felt so much lighter and fresher compared to normal when I arrived at the destination. Would use again for sure.

Thanks, Natasha! So glad Firefly delivered on your long haul. We hope to keep being your go-to for every flight ahead!

M
Morgan Fontaine (United States)
Nothing Like It!

As a collegiate soccer player with a very busy season, these are a game-changer. I especially love using them on bus rides to away games and in the locker room before home games. Blood flow is extremely important for recovery and overall health, and there is nothing on the market (at least that I know of) that increases blood flow to the legs like this. They are legit!

Hi Morgan! We're thrilled to hear our Firefly is making a difference for you. Wishing you the best in your soccer season and recovery! Thanks for sharing your experience.

I
Ifeanyi Ifediba (United States)
CHANGED MY LIFE

I start using fire fly to recover after every long run and I absolutely love them

Hi there! We're thrilled to hear that Firefly has made such a positive impact on your recovery routine. Thanks for sharing your experience!

G
Gaby Arretche-Ramos (United States)
My Go-To for Recovery!!

Recovery is such a big part of being an athlete, so I love having something like Firefly that I can use without having to stop what I’m doing. I can wear it wherever and whenever, which makes it really easy to fit into my day. It’s something I’ve added to my everyday routine, especially while training.

Thanks for sharing, Gabrielle! We love that Firefly fits so easily into your schedule. Good luck with your training!

M
Marcus Chapman (United States)
I LOVVVEEE ITTTT

This is the BEST recovery devise I’ve used on my legs EVERRR!!! Firefly Recovery has been amazing! Great products, great quality, and an awesome brand that truly cares about helping people. Highly recommend!

Thanks so much for sharing, Marcus! We are really happy to hear Firefly has made such a positive difference for you. Kind words like these truly mean a lot to us. We hope to keep being your go-to!

S
Samson Ojuka (Kenya)
Samson Ojuka review

As an athlete with a disability competing in T37 jumps, recovery is everything. After hard sessions my legs and residual limb feel heavy and sore. 20-30 minutes with Firefly on and the next day I feel way lighter, less tight, and ready to train again. The pulsing really gets blood moving!

What I love most is how easy it is. No wires, just stick it on and I can wear it while stretching, in the car, or even at the airport. Perfect for athletes who travel a lot for competition.

As a para-athlete chasing performance and representing Kenya internationally, this is a tool I’ll keep using.

Would recommend to other athletes with disabilities.

Thanks for sharing, Samson! Really happy to hear Firefly is delivering for you. We hope to keep being your go-to, keep representing!

C
Carrey (United States)
Can’t replace battery

My husband liked these but when it came time to replace the battery you basically have to break the housing and there for they appear to be a one and done. That sucks.

Thank you for sharing your feedback, Carrey. We want to clarify that Firefly is not designed to have the battery replaced, it is a sealed device with up to 30 hours of use. We are sorry and please feel free to reach out to us at [orders@fireflyrecovery.com](mailto:orders@fireflyrecovery.com) if we can help.

Z
Zachary S. (United States)
Comfortable and Convenient!

The Firefly Recovery device has been an important part of my recovery routine for a while now. I love how well they work and also how easy and comfortable they are to use. No problem wearing them out to a casual post race dinner with friends and they’re a dream on long flights.

Hi Zachary! Thanks so much for sharing your positive experience with Firefly! We're really glad to hear that our devices have been a helpful part of your routine and that you find them comfortable and easy to use, even for post-race dinners and long flights.

S
Shannon Taylor (United States)
Life Savor

I recently had 2 blood clots in my calf and put on eloquis. I was scared to fly until I came across firefly. I used them on my flight over/back to England and the day after to help circulation. They helped keep my legs from swelling and I was at ease. Definitely recommend! Especially as a retired Olympic athlete!

Hi Shannon! Thanks so much for sharing your experience with Firefly! We're really happy to hear that Firefly helped keep your legs comfortable and supported during your travels. It's great to know they made a difference for you, especially as a retired Olympic athlete.

A
Ashton S. (United States)
Simple, practical recovery support

As a freestyle aerials ski athlete, recovery and readiness are an important part of my training routine. FireFly is simple, portable, and easy to use during training blocks, travel days, and recovery windows. I appreciate that it fits into a busy athlete schedule without adding extra complexity.

Thanks for sharing your experience, Ashton! We are really happy to hear Firefly has fit so naturally into your training routine. We hope to keep being part of your recovery!

G
Grace Martinez
My recovery must-have!

As a touring professional ice skater, I am always on the go and needing to maximize recovery time. I use Firefly to recover after hard training days and to keep my legs fresh during travel. It has been a game changer and helps me perform my best!

Thanks, Grace! So glad Firefly is helping you stay fresh and perform at your best no matter where you are. We hope to keep supporting you!

W
Wiktoria Kiszkis (United Kingdom)
Amazing recovery product on the go

I’ve been lucky enough to try a range of recovery products throughout my football career, and Firefly has definitely filled a gap in the market. It’s by far the easiest recovery product to fit into my busy schedule, whether I’m travelling, working, or relaxing at home.

Recovery is a huge part of performing at your best, and Firefly makes it simple without taking extra time out of my day. My legs feel fresher after training and matches, and it’s become an essential part of my recovery routine.

Thank you Wiktoria! Firefly is made to fit into your day no matter how busy it gets. So glad it is working for you!

C
Christina M (United States)
Bouncing back into training post-travel!

I'm a freediving athlete which typically involves a lot of travel. And this year with an especially tight schedule, I replaced my typical compression socks with Fireflies so that I'd be able to bounce back faster straight into training after a long flight in some very close flight/training windows. They work great! I don't feel the usual swelling in my feet (which already typically have bad circulation and even worse on flights). It felt a little funny at first having my legs twitch a bit, but man, I let them run for a few hours at a time and felt fresh the next day! I wish I had these years ago for work and training!

Thank you for sharing your experience, Christina! We love being part of your training journey and cannot wait to keep supporting you on every trip ahead

R
Riley Scorgie (Canada)
Firefly partnership!

Absolutely LOVE my Firefly's. It has become a staple in my recovery routine, especially during the hockey season when I’m constantly traveling. It’s so so easy to use on the road! I rely on them during my summer training, between classes, work, and everything else in between. The add on straps are SUCH a lifesaver when the firefly's start to lose their stickiness. I genuinely don’t leave for a trip without packing my Firefly.

We're glad Firefly has become part of your routine both on the road and around campus. Wishing you the best in your upcoming season!

W
Wyatt (United States)
An Essential Part of My Training and Race Routine

Firefly has become an essential part of my recovery routine as a competitive swimmer. With training sessions stacked throughout the week, I use it in between swims to keep my legs fresh and come back faster for the next practice. It's also made a huge difference when I travel to competitions. It's lightweight, easy to use, and has helped me feel more recovered and ready to perform. I Highly recommend it to any athlete looking for an edge in their recovery.

Thank you for sharing your experience! We're glad Firefly has become part of your training and travel routine. Best of luck with your upcoming competitions and training sessions.

S
Sadie Stevens (United States)
Student Athlete Recovery

I am a division 1 women's lacrosse player, and these are my favorite recovery to bring on the bus. They are extremely easy to travel with as the packaging is so small. Also, not long after putting them on I forget about them cause it's such a gentle rhythmic flutter.

Thanks so much for sharing your experience, Sadie! We're really happy to hear Firefly helps you recover on the go and as a D1 athlete!

R
Ramona Abbott (United States)
READY WORKS

Especially for the newbies that are stepping toward the marathon goal. I cannot believe how amazing my legs felt. I returned from my first race applied Firefly to my tired limbs.
It was as if I had not ran. No soreness, feet and legs felt refreshed and “Ready”. Firefly is a standard for training and race day. Thanks Firefly

Thank you so much Ramona and a huge congratulations on completing your first marathon! We are beyond thrilled that Firefly had your legs feeling fresh and ready after such a monumental race and we cannot wait to be part of every training block and race day ahead.

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