For most of his NFL career, Jalen Ramsey has been wearing a DryMax Chinsaver (chinstrap cover) over his chinstraps. He always wears it in an all-white colorway.
The chinsaver is a small sleeve you can put over your chinstrap that helps reduce sweat, improve your skin, and prevent odor. Basically this is a product to make your chinstrap more comfortable and reduce the infamous chin acne.
You can grab a 2-pack from Drymax for $16.
Photos via therams.com.