The Zwilling Energy plus line of cookware is a triple play!
Aluminum center core with stainless steel clad and a long loasting, duarble ceramic nonstick coating!
I use these pans on a regular basis and continue to be impressed by their performance. 
Great conductivity which is means your foods will cook faster, more evenly and use less energy. 
Easy to use and clean thanks to the durable non stick ceramic surface.
High Permance pans! Super comfortable to hold.
Great set!