Historical Emporium Men's Polar Expedition Slit View Goggles Metal frame Imported Reproduction of early military style goggles; great for costume or reenacting Ingenious arrangement of slits allows viewing horizontal, vertical and diagonal angles, but are very effective at blocking glare, dust and drifting snow without lenses Simple yet effective prevention for snowblindness as well as an instant conversation starter Adjustable elastic head strap keeps these goggles in place no matter the weather Not recommended for use while motoring, downhill skiing, or other high speed pursuits and are NOT intended as (nor built to be) safety goggles