4D MAG Low Bridge + Bonus Lens Size:One Size the contoured surface area helps

the contoured surface area helps prevent saddle discomfort

and constructed with lightweight

The lockable selector knob allows you to choose either top rope or lead belay mode

Following in the footsteps of the hallowed Krypton series

swim after swim

4D MAG Low Bridge + Bonus Lens Size:One Size the contoured surface area helpsThe Smith 4D MAG brings Smith's widest field of view and sharpest optics to give you the best possible read on the terrain, so you can nail your line every time. Add quick and easy lens change tech, and you've got the only goggle you need for all conditions riding. Thanks to ChromaPop, the 4D MAG drops you into a bigger, brighter, sharper world. Smith MAG lens change system uses magnets for quick, easy lens changes ChromaPop lenses enhance contrast