Air twist 360 AT-004-PG

Wellington shape with rim engraving, adorned with front cloisonné, creating a coloring unique to Ptolemy48.
By using the newly developed super-elastic memory alloy "AL-29" as the material, we have achieved an amazing springiness that makes them "hard to break + hard to slip," a light and gentle fit that doesn't pinch the temples.
You'll notice the difference the moment you put them on, as if you're not wearing anything at all. The newly developed super-elastic memory alloy "AL-29" is a unique copper-aluminum alloy that overcomes the weaknesses of conventional shape-memory alloys, making it an extremely superior shape-memory alloy.