A limited edition series from the Sen-Ichi Saku collection which boasts of made-in-Japan frames handcrafted by eyewear artisan Mr Sen-Ichi. Crafted in Sabae, the home of eyewear making, every frame is made with care and dedication, using the finest materials to bring you high quality eyewear that is perfect in any climate. The frames in the limited edition series are made of Bio Soft Titanium, a new type of titanium alloy developed for medical use. The material is characterized by strong durability and high flexibility. The frames are safe for people with allergies to metal as there are no allergens such as nickel present in the material. Moreover, the hinges are made using a proprietary technology in Japan, further enhancing the overall durability of the frames.