4D Mag XL | Granite Blue YGroup_RhythmMTB BOA® 360 Fit System offers

BOA® 360 Fit System offers the most adjustable fit with the turn of a dial for on-the-fly micro-adjustability

CE EN 1078 and AS/NZS263 certified

Designed for ultimate integration with Smith performance eyewear for maximum comfort

Temple side shield ChromaPop™ window lens feature

ChromaPop™ Glass polarised lenses cut glare and enhance color and contrast

4D Mag XL | Granite Blue YGroup_RhythmMTB BOA® 360 Fit System offersVision Smith MAG lens change system uses magnets for quick, easy lens changes ChromaPop lenses enhance contrast and natural color to make the details pop BirdsEye Vision clarifies not just your line, but the riders in your periphery 5X anti fog inner lens for advanced fog free performance Over the glasses (OTG) compatible Provides 100% protection against UVA UVB Fit Integration Designed for ultimate integration with Smith helmets for maximum comfort,