Abstract: Eyewear includes a half-jacket frame. A removable shield, extending from the half-jacket frame to the wearer's face, may be provided to prevent direct impingement of air and dust on the wearer's eyes. The half-jacket frame includes a left indent, a left upper lens groove adapted to receive a left lens, a right indent, and a right upper lens groove adapted to receive a right lens. The removable shield includes a left lens opening, a left detent adapted to cooperatively receive the left indent of the half-jacket frame, a left lower lens groove adapted to receive the left lens and mate circumferentially with the half-jacket frame, a right lens opening, a right detent adapted to cooperatively receive the right indent of the half-jacket frame, and a right lower lens groove, adapted to receive the right lens and mate circumferentially with the half-jacket frame. The half-jacket frame may be constructed of titanium.

Abstract: Disclosed is eyewear that may have a half-jacket frame and a removable dust shield for preventing direct impingement of dust upon a wearer's eye. The eyewear may have a titanium frame and removable lenses free of any attachment structure. The frame may have a lens-retaining ridge with a thin cross section. A nosepad on the frame may carry a shield retainer for releasably affixing a shield to the frame. The nosepad and the half-jacket frame front may be cast together in one piece out of titanium or titanium alloy. An anti-slip nosepad cover may partially cover the nosepad and leave the shield retainer exposed. A removable shield may have a lower lens groove that circumferentially mates with an upper lens groove of an orbital of a half-jacket frame, thereby circumferentially completing the lens groove when the shield is in place. A rigid temple may carry a slip resistor for contacting the wearer's skin. The eyewear may have a vent to reduce fogging of the lenses and the shield may be air-permeable.

Abstract: Eyewear includes a half-jacket frame. A removable shield, extending from the half-jacket frame to the wearer's face, may be provided to prevent direct impingement of air and dust on the wearer's eyes. The half-jacket frame includes a left indent, a left upper lens groove adapted to receive a left lens, a right indent, and a right upper lens groove adapted to receive a right lens. The removable shield includes a left lens opening, a left detent adapted to cooperatively receive the left indent of the half-jacket frame, a left lower lens groove adapted to receive the left lens and mate circumferentially with the half-jacket frame, a right lens opening, a right detent adapted to cooperatively receive the right indent of the half-jacket frame, and a right lower lens groove, adapted to receive the right lens and mate circumferentially with the half-jacket frame. The half-jacket frame may be constructed of titanium.

Abstract: Disclosed is eyewear that may have a half-jacket frame and a removable dust shield for preventing direct impingement of dust upon a wearer's eye. The eyewear may have a titanium frame and removable lenses free of any attachment structure. The frame may have a lens-retaining ridge with a thin cross section. A nosepad on the frame may carry a shield retainer for releasably affixing a shield to the frame. The nosepad and the half-jacket frame front may be cast together in one piece out of titanium or titanium alloy. An anti-slip nosepad cover may partially cover the nosepad and leave the shield retainer exposed. A removable shield may have a lower lens groove that circumferentially mates with an upper lens groove of an orbital of a half-jacket frame, thereby circumferentially completing the lens groove when the shield is in place. A rigid temple may carry a slip resistor for contacting the wearer's skin. The eyewear may have a vent to reduce fogging of the lenses and the shield may be air-permeable.