The Tri-Ply Stainless Steel line from All-Clad is a timeless classic. Though this line has been around for awhile, it’s received periodic updates, the most recent of which makes the products in this line induction ready. This collection features a design with an aluminum core and stainless steel exterior. The pieces of cookware that belong to this line are made to be durable and easy to clean while also providing excellent performance on all cooktops, including induction. These features come together to make Tri-Ply Stainless the most popular of All-Clad’s collections. Some non-stick stainless products are also available. Lifetime Warranty. Made in the USA.