No Hidden CostsNo Audiologist VisitNo RiskMade in the USA
Product Selection Guide
Find your perfect Fen X.
Every pair is molded to your ears. Answer three quick questions and we'll match you — in under 30 seconds.
1Activity
2Protection
3Communication
4Your match
What will you use them for?
Pick the activity that matters most — you can change it later.
How much protection do you need?
How much sound should be taken out of the environment around you.
Do you need to hear what's going on around you?
This decides your filter type.
After you order
1ScanScan your ears in minutes with the Fen X app — no molds.
2FitOur AI optimizes your scan for comfort, seal & performance.
3Ship3D-printed in medical-grade silicone and shipped in 48 hours.
No Risk
Free Shipping
Money-Back Guarantee
Made in the USA
Prefer to explore on your own?
Browse by collection.
Still deciding?
Selection FAQ
What's the difference between Isolating, Filtered, and Pass-through?
Isolating plugs block sound across the full range — best for sleep and high-noise isolation. Filtered plugs use a calibrated insert that lowers volume while keeping speech and music intelligible. Pass-through designs are sleeves around earbuds or electronic hearing — sound is fully transmitted through the device.
How do I read the protection levels?
Hear Through passes sound straight through. Light (~10–15 dB) takes the edge off. Moderate (~15–22 dB) is the sweet spot for most loud environments. High (~22–32 dB) is our deepest isolation — heavy snoring and the loudest rooms. NRR ranges are typical — exact ratings vary by fit and filter.
Lanyard or no lanyard?
Pick a lanyard if you remove your plugs frequently or work where dropping a plug is a problem. Skip it if you wear plugs under a helmet, earmuff, or hat — the tab can interfere. You'll choose at checkout on most models.
Can I use Fen X with electronic hearing devices?
Yes — the Comfort Max sleeves are designed to fit AirPod Pro, Bose, Sony, and Stealth/Axil/ATK electronic earplugs. Some come with active amplification or Bluetooth built in.
What if I do more than one activity?
Most customers end up with two pairs — one for sleep or work, one for their primary loud activity. Many of our half-shell designs work across collections (the Strike, Titan, and ShockWave share a chassis with different filters).
How do the filters actually work?
Each filter is a calibrated acoustic insert tuned for a specific environment — impulse noise, music, wind, or speech. Learn how Fen X filters work →
Ready when you are.
Skip the clinic. Skip the mold. Just scan — and we'll handle the rest.
✓ Made in the USA · ✓ Shipped in 48 hours · ✓ 3-Year Warranty
Two kinds of filter, two different jobs
Flat attenuation
Lowers volume evenly across all frequencies, so music and speech keep the same balance — just quieter. Available in 10, 15 and 20 dB. This is what you want for concerts, rehearsals, festivals and live sound.
Level dependent
Lets low-level sound through and clamps down hard on sudden peaks, with attenuation increasing as the sound gets louder. Built for impulse noise — shooting, hunting and range use — where you need to hear commands right up until the shot.
I swim a mile in open water (weather permitting) or pool a mile 3 to 4 times a week and have been using Fen X ear plugs for about 3 months and love them. I can hear with them in and no water is getting in my ears.
W
Titan without Lanyard Wil Seabrook
Makes the riding experience better
As a motorcyclist, these earplugs blocked out wind and other loud, damaging sounds without making everything you want to hear sound muffled or distorted. They're comfortable to wear and are custom molded to your ears. They make it easy to do the right thing and protect your hearing while making the riding experience better, not worse.
The scan on my ears was fast, easy, and totally non-invasive -- the custom plugs fit perfectly. I keep them handy in my purse, it's so easy to just slip them in. Very comfortable and you can barely see them. I wear them in the office whenever I need to concentrate.
I use these ear plugs for Target practice and when I am duck hunting and I can honestly say, I have never owned a better pair of hearing protection. At the range it's gets loud and I can still hear my friends talking. I highly recommend them!
My husband and I recently got these, and we're honestly wondering why we didn't do this sooner. The process of scanning with my phone was a lot of fun and they fit perfectly. They block out noise but let you hear the things you need to. No more tossing and turning, just uninterrupted sleep and happier mornings.
