Air twist 360 AT-005-PBR

Light and unbreakable — the second installment of Air Twist 360! An acetate Boston shape with a titanium bridge, and temples made from the newly developed super-elastic memory alloy "AL-29." A remarkable elasticity that only the wearer can truly feel. A material whose restoring force remains unchanged down to minus 40 degrees. As for the origin of the name, this lightweight pair of glasses refers to the remarkable shape-memory alloy that returns to shape even after being bent 360 degrees. Made from the newly developed super-elastic memory alloy "AL-29," it achieves remarkable spring properties that are "hard to shift," along with a light, gentle fit that never squeezes the temples. You'll notice the difference the moment you put them on — it feels as if you're not wearing anything at all. The newly developed super-elastic memory alloy "AL-29" is a proprietary copper-aluminum alloy, an outstanding shape-memory alloy.