Studson - SHK-1 Ear Defender

Universal Fit: Equipped with a 30mm universal attachment, it securely clips into the integrated side rail slot of your SHK-1 helmet.
Noise Reduction Rating (NRR): Provides an NRR of 24 decibels, meeting ANSI S3.19-1974 noise reduction standards.
Helmet Compatibility: Compatible with the SHK-1 Standard Brim helmets. Please note: This product is not compatible with SHK-1 Full Brim helmets (vented or non-vented).
Easy Mounting: Designed for quick installation on the side of your SHK-1 helmet, offering simultaneous head and ear protection.
Adjustable Comfort: Easily adjusts to fit snugly over your ears for all-day comfort.
Care Instructions: To clean, simply wipe with a damp cloth.