ESS Suppressor Frame and NosepieceTerrain Tan. The ESS Suppressor Ultra-thin Frame Kit features Z-Bend Geometry that minimize the effect on the padded seal of ear cups to keep out noise and eliminate the hot spots and pressure points that usually occur when normal Glasses is worn under ear cups. Specifications for ESS Suppressor Frame Kit: Manufacturer: ESS Gender: Unisex Lens Color: Terrain Tan Package Contents: ESS Suppressor Ultra-thin Frame Kit ESS 740-0532: Suppressor Frame and NosepieceTerrain Tan