Motorcycle Goggles and other types of protective eyewear - you need your eyes if you're going to ride a motorcycle. You also need to keep the sun, wind and rain, and bugs and stones out of your eyes - for obvious comfort reasons and for safety. Imagine what happens to your ability to control the bike if you're blinded by a bee, who unfortunately flew right in your right eye. Your unprotected right eye. No thanks.
Even when wearing a helmet, I've had bugs come in through the bottom or the vents. God knows how they got in, but I'd prefer that they stay out of my eyes.
I usually have a few different pairs of sunglasses for motorcycling, and I always keep a spare pair in my tankbag.
AND, I have found that I need to be a bit particular when it comes to the sunglasses that I wear while motorcycling.
Motorcycle Sunglasses need to:
Fit inside the helmet comfortably
Stay put
Not fog up in damp, humid conditions
Be lightweight
Shatterproof
Have UV protection
Look cool
Not surprisingly, there are choices when it comes to motorcycle goggles and glasses.
You can find goggles with a head strap, that are padded in the areas that make contact with your face.
If you wear prescription glasses, you can actually have your prescription made into motorcycle sunglasses.
There are self-adjusting glasses, that get darker or lighter depending on the amount of sun.
You can find transparent lens glasses and goggles, and you can even find glasses tinted to match your bike's color.
There are classic-looking glasses, vintage-inspired and ultra-modern, ultra-cool glasses.