Each line in Hestan's Bonded Series is handcrafted in Italy and combines high-performance and highly-durable materials to deliver cookware that cooks beautifully and looks stunning for years to come. Named "Most innovative" and "Most Durable" Cookware by Good Housekeeping, the Nanobond Series is 400% stronger than stainless steel and boasts 35% better heat conductor than aluminum-clad cookware. The five-layered construction of the CopperBond Series offers the performance and beauty of Copper with the durability and clean-ability of high-grade 18/10 stainless steel cooking surface, rims and base. The Probond Series' Exclusive ProCoreTM aluminum delivers 35% faster heat conduction and is optimized for induction cooktops.