Air twist 360 AT-003-PG

A slim Wellington shape adorned with chokin engraving on the rim and cloisonné enamel on the front creates a coloring unique to Ptolemy 48.
By using the newly developed super elastic memory alloy "AL-29" as the material, it achieves a surprisingly springy, "durable + slip-resistant" design that doesn't pinch the temples, providing a light and gentle fit.
The moment you put them on, you'll notice the difference, feeling as if you're not wearing anything at all. The newly developed super elastic memory alloy "AL-29" is a proprietary copper-aluminum alloy that is a highly superior shape memory alloy, overcoming the weaknesses of conventional shape memory alloys.