4" (111 mm)

Heat Stress Prevention: Ideal for those working or exercising in hot environments

left behind

Dual Pane lens combines optically correct polycarbonate outer lens combined with interior acetate lens to create a Thermo Lens System which traps and isolates high heat or extreme cold in between the lens system and away from the face

Heavy Duty Green And Silver Tarps Size:20ft x 20ft 4" (111 mm)This tarp is made of heavier material than the blue tarp. It is green on one side and silver on the other side. These heavy duty tarps remain flexible and tear resistant, waterproof, mildew resistant, and have plastic corner sleeves. There are rust proof aluminum grommets every 1. 5 ft and on each corner. The silver side reflects UV rays to protect things covered by the tarp. Features: Fabric Weave: 12X12 8 mil thickness Woven and coated polyethylene