What is the NRR rating for these?

Listed as 20. But will vary depending on external factors.

how tightly should they fit? ordered large and have to really leverage them in place. considering ordering a medium??

You do wish them to be tight. A loose fit negates the dampening. Sometimes you need to find your "angle" or pull on the ear upwards to achieve fit. If you feel uncomfortable pressure you may wish to downgrade the sizing, but keep in mind, it is the compression of the rubber in the ear canal that achieves the defensive blockage.

I have etonomic research custom musicians earplugs. Do you have inserts for those?

These earplugs did not fit my ears and I returned them.

What material is used in the product that requires the disclaimer on the package “Warning: Cancer and reproductive harm”?

Just plastic, rubber, foam, and the little metal chain attached to the carry case. I think this is just one of the many products that California, and only California, lists a cancer warning on.

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Etymotic Research ER-20XS Large Fit High Fidelity Earplugs - Clear/White

Etymotic Research ER-20XS Large Fit High Fidelity Earplugs - Clear/White

Product ID: 256211104

Details

Brand
Etymotic
Colour
Clear/White
Material
Thermoplastic
Recommended uses for product
Noise
Size
Large

🎧20dB sound reduction

🔄3 interchangeable eartips

🧢stem-less low profile fit

Description

🔇 Protect your ears in style—hear more, miss less!

TAILORED FIT FOR ALL DAY WEAR - Comes with three interchangeable eartips ensuring a perfect, secure seal for every ear shape.
EFFORTLESS REMOVAL PORTABILITY - Flexible pull tab and included neck cord make these earplugs easy to wear and carry everywhere.
BUILT TO LAST REUSABLE RELIABLE - Durable thermoplastic polyurethane construction designed for repeated use in concerts, motorsports, and work.
CRYSTAL CLEAR SOUND MINUS THE NOISE - Engineered to reduce sound evenly by 20dB without distorting your audio experience.
INVISIBLE COMFORT UNDER ANY HEADGEAR - Stem-less, low-profile design fits discreetly under hats, helmets, and headphones.

The Etymotic ER-20XS Large Fit High Fidelity Earplugs deliver professional-grade 20dB noise reduction with a unique stem-less design that fits comfortably under hats and helmets. Featuring three interchangeable eartips for a customizable fit, these reusable earplugs preserve sound clarity by replicating the natural ear canal response, making them ideal for concerts, motorsports, and noisy work environments.

Specifications

ASIN	B00RM6Q3BA
Best Sellers Rank	#161,743 in Health ( See Top 100 in Health ) #910 in Earplugs
Brand	Etymotic Research
Brand Name	Etymotic Research
Color	Clear/White
Colour	Clear/White
Customer Reviews	4.2 out of 5 stars 127 Reviews
Global Trade Identification Number	00084643001716, 00846430001718
Included Components	1 set plugs
Item Dimensions	40 x 65 x 20 millimeters
Item Form	Pair
Item Weight	0.01 Kilograms
Manufacturer	Etymotic Research, Inc.
Manufacturer Part Number	ER20XS-CCC-C
Material	Thermoplastic Polyurethane
Material Type	Thermoplastic Polyurethane
Model Name	ER20XS
Model Number	ER20XS-CCC-C
Noise Attenuation	20 dB
Noise Reduction Rating	20 Decibels
Number of Items	1
Number of Pieces	20
Product Style	Large Fit
Recommended Uses For Product	Noise Protection
Recommended uses for product	Noise Protection
Reusability	Reusable
Single Number Rating	20 Decibels
Size	Large
Specific Uses For Product	Motorsports, concerts, machinery operation, vehicle operation, tools usage, and sporting events
Sport Type	Shooting
Style	Large Fit
UPC	846430001718 084643001716
Unit Count	1 Count

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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