Our warmest base layers

The removable insulated liner

smoothly cutting through windblown snow and crud with ease

Our 3D mesh fabric creates dead air space next to your skin

Control Fit liner

Smith 4D MAG category_balaclava Our warmest base layersCheck your zippers and buckle your boots. It's time to drop in. The Smith 4D MAG brings our 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 our 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. Vision Smith MAG lens change system uses