Spine has five working vertebrae that constantly interact with each other to create a 90 degree hinge opening. The design’s hinge and cable system flexes the temples in all directions, securing the frame in place and eliminating the need to constantly push the eyewear back up the bridge of the nose. Spine uses Micro Injection Moulding (MiM) technology, also used in the aerospace, automotive and medical industries, to produce precise metal results. Temple tips are engraved with the Spine signature pattern and also improve grip to reduce slipping. Signature nosepads are encase in high-quality silicone, while lasered sun lenses have an inner anti-reflective coating to minimize glare.