Buying & wearing sunglasses
There are always debates on the use of any equipment down to your underwear. One of the debates I find funny is the use of sunglasses during daytime patrol. Absolutely wear sunglasses during the sunlight. They protect your eyes from harmful UV light and from foreign materials. They also conceal your eyes so no one knows where you are looking. You can be facing forward but eyeballing the suspect walking down the sidewalk.
If your sunglasses become an obstruction or hindrance set them on your head, hook them on your shirt or throw them down.