CHIMI 04 in Tortoise. 04 is a stylistic silhouette creating dynamic contrast with a strong rectangular frame and slim sides. Finished with silver-tone rivet hinges and deep bevel cuts along the UV-protective, flat CR39 lenses. Handcrafted in premium Acetate Renew™, composed of 42% bio based and 28% certified recycled plastic with a customized CHIMI metal core. Each pair comes with a branded case, pouch and cleaning cloth.