Frame material: thermoplastic hypoallergenic TPEE (energy efficient) Lens material: TAC, shatterproof and scratch resistant Flexible structure Measurements: width 10cm x length 11cm Packaging size: 17.4cm x 8.5cm x 4cm Polarized lenses Category 3 (protects against UVA and UVB) UV 400 lenses Metal Hinges Brand logo on the temples CE, EN-71, ISO, DROP BALL, CPSC, FDA certificate ATTENTION: TAC lenses are made up of 7 protective layers. Water can cause layers to lift and damage sunglasses, so avoid exposure to water.