Half-rim framesModel: Ichirin-sanAlso known as "Nairoll". Only the upper half of the lens is surrounded and covered by metal and acetate material. The lower part is fixed in using Nylon.
Nairoll (ナイロール) is an alternative way to refer to upper half-frame glasses in Japan. Nylon is used to support the rim of the glasses"I'm not Iincho!"
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