After a long day of riding, inserting and removing foam earplugs can irritate your ears. These form-fitting earplugs are made of moldable silicone that fit very comfortably to the unique contours of any ear. They won’t cause discomfort and are reusable. Doctor recommended for hearing protection with a substantial noise reduction rating of 22 dB. Snore proof. Shatterproof carrying case included. (2 pair).