proSPORTproSPORT Leather Sunglasses Side Shield for Motorcycling

Q: Can the leather side shields be taken off? Also, can the lenses be removed and replaced with prescription lenses?

the side shields can be taken off. I have no idea about the lenses

Q: How well do these work on glaciers?

The Glacier glasses wrap around side shields help protect eyes from the harsh winds, dust and snow/ice debris. The side shields also block bright light and glare from coming in behind the lenses. The polarized version seems to be the favorite for artic conditions.