Crafted with 5 distinct bonded layers, the d5 line from All-Clad offers maximum efficiency through modern technology in a perfect harmony of cooking performance. A patented, three-layer aluminum and steel core propels heat sideways, eliminating hot spots and driving through the entire pan, not just the base. This heat and the non-reactive, neutral stainless steel interior create the optimal cooking surface that will not impart flavors and odors to foods. The magnetic exterior layer is compatible with induction cooktops as well as traditional gas and electric stoves. Flared sides promote easy pouring, while redesigned stainless steel handles are cool, comfortable and ergonomically balanced for reduced stress when lifting. Fitted stainless steel lids have larger handles that are easier to grip with oven mitts.