Smith 4D Mag Belay Devices Full-length double-slider #5 YKK zipper

Full-length double-slider #5 YKK zipper with zipper plow makes getting in and out of the bag a breeze

•Removeable chest pads

Adjustable snapback for a custom fit

Invented in 1987 by John Middendorf and originally brought to market as Lowe Balls

Smith 4D Mag Belay Devices Full-length double-slider #5 YKK zipperCheck 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. Product Details Vision Smith MAG lens