These high performance winter boots...
MATERIAL: polycarbonate COLOUR: clear CURVATURE: 7 STANDARDS: EN 166 - General standard, EN 170 - Ultraviolet filters MARKING: 2C - 1 ,2
LENS: MATERIAL: polycarbonate COLOUR: clear CURVATURE: 5 STANDARDS: EN 166 - General standard, EN 170 - Ultraviolet filters MARKING: 1 BT 9 CE
LENS: MATERIAL: polycarbonate COLOUR: clear CURVATURE: 3,5 STANDARDS: EN 166 - General standard, EN 170 - Ultraviolet filters MARKING: 1 BT CE
LENS: MATERIAL: polycarbonate COLOUR: clear STANDARDS: EN 166 - General standard, EN 170 - Ultraviolet filters MARKING: 1 BT 9 CE FRAME: FRONT MATERIAL: PVC MARKING: EN 166 4 9 BT CE