Improves Blood Flow
through gentle, rhythmic muscle stimulation
Shop All Firefly Recovery Devices
Firefly is a wearable neuromuscular stimulator that supports blood flow and muscle performance - available as a standalone device, a Starter Pack with Accessory Straps, or a bulk pack for teams. It's built for athletes, travelers, and anyone who spends long hours sitting or standing on their feet.
Firefly is an FDA Class II cleared NMES device that uses low-level electrical signals to activate the peroneal nerve, creating a gentle, walking-like muscle pump in the lower leg. That muscle stimulation supports blood flow and helps ease everyday muscle soreness - without compression, wires, or downtime. It's a wearable recovery device, not a static muscle stimulator you have to sit still for.
through gentle, rhythmic muscle stimulation
after training or long stretches of inactivity
with no compression, no apps, no downtime
Recovery Device for Athletes & Travelers: Muscle Soreness and Heavy Legs
Wear Firefly during a flight to ease heavy legs and arrive feeling refreshed. For travelers, that means landing without the usual stiffness from hours in a seat. Wear it after training as part of an active recovery routine to help take the edge off post-workout muscle fatigue - for athletes, that means showing up to the next session with legs that already feel a step ahead. Firefly is trusted by over 1,300 professional and collegiate teams for recovery. Round out your setup with Firefly Accessory Straps or a Carrying Case.
Muscle recovery devices support the body's recovery process after physical activity through mechanisms like blood flow stimulation, muscle activation, or tissue manipulation. Some use mechanical percussion; others, like Firefly, use neuromuscular stimulation to activate muscle contractions that support circulation. Firefly is a wearable, FDA Class II cleared device built to improve blood flow and support muscle performance - a portable alternative to bulky compression systems or passive recovery methods.
The right tool depends on your training schedule, mobility needs, and how much downtime you actually have. If you train multiple times a day or travel often, a portable option that doesn't require sitting still tends to fit better. Firefly is built for that: precision neuromuscular stimulation you can wear during travel, work, or rest, without the bulk of compression gear.
Travel recovery tools need to be compact, TSA-friendly, and usable without a power outlet or a dedicated session. Long flights and long travel days leave legs feeling stiff and heavy from hours of sitting still. Firefly fits in a carry-on and can be worn during a flight to support circulation and ease muscle soreness, without compression garments or bulky equipment.
Electrical muscle stimulation refers to technology that delivers controlled electrical impulses to trigger muscle contractions, helping move blood through the muscle and support the clearance of training byproducts. Firefly specifically uses NMES (neuromuscular electrical stimulation), applied at gentler intensities than EMS built for strength training, so it activates circulation without adding to muscle fatigue. Firefly applies NMES to support blood flow and ease post-workout soreness, in a wearable format you can use while doing other things.
Good recovery equipment should address what fatigued muscles actually need - blood flow, waste clearance, and muscle relaxation - while fitting realistically into your schedule. Portability and ease of use matter as much as mechanism, since a tool only helps if you actually use it. Firefly is built for athletes who want a reliable, portable way to support blood flow and muscle performance without a stationary session.
Larger, professional-grade equipment often prioritizes power and features over portability, but effectiveness comes down to consistent use and a sound mechanism, not size alone. Portable devices built on evidence-based mechanisms, like neuromuscular stimulation, can deliver comparable blood flow and muscle performance support when used regularly. Firefly is FDA Class II cleared and built on the same neuromuscular stimulation principles studied in clinical research, packaged into a device you can wear during travel, training, or your everyday routine. Firefly is trusted by over 1,300 professional and collegiate teams to provide training and travel recovery.
We recommend wearing Firefly for 1 to 4 hours after a workout to help take the edge off muscle fatigue. Because it's wire-free and wearable, you can leave it on while you unwind after a hard workout.
Many athletes consider recovery to be as important as training. Recovery tools are worth it when they address a real physiological need, fit consistently into your routine, and are backed by evidence or a real clearance standard. For athletes training multiple times a day or traveling often, a tool that supports blood flow and eases soreness without requiring downtime adds up over a season. Firefly is FDA Class II cleared and built to support blood flow and muscle performance in a portable, everyday format.