SevenFriday Sunglasses Jazz, SAF1/01. Retro Square Frame:  Polished black premium Japanese acetate frame. Polished stainless steel inner rim.  Squared box with rounded edges stainless steel. Flexible Temple: 145mm. \"7F\" icon logo on each temple has industrial beam core wire in horizontal. brushed stainless steel. Crystal clear polished acetate merges with polished black acetate at the tip. \"7F\" icon in silver on the inside left temple. Lenses: CR39 warm green lenses with blue anti-reflective coating on the inside. • Category 3 • 100% UVA/UVB protective lenses. NFC Chip: NFC Chip embedded in the left temple tip allows authenticity verification via the SEVENFRIDAY App and the NFC scanning station. Packaging: Packaged in a collapsible natural cork box with red cleaning cloth.