Issey miyake glasses - Gem。OMG these frames are AMAZING! The IM 401unisex sunglasses released by Issey Miyake Design Studio in the 1990s are a great find. These sunglasses have great craftsmanship with round frames made of premium high density Monel base alloy with antique silver tone plating. Produced by Mike Design Studio with Miyakes legendary architectural and avant-agarde in fashion. The lenses have high end optical clarity and durability with amazing craftsmanship. These lovely frames are size 44/21 and measure approximate 5\" temple front, 1\"8 high (lenses) and 5\"6 (temple) long. These sunglasses are in excellent condition and don\'t seem to have ever been worn nor any scuffs on lenses. 100% genuine Issey Miyake/Miyake Design Studio made in Japan and don\'t come with box.