Using advancements in materials and manufacturing technology, acclaimed designer matteo thun merges innovation with tradition to create zwilling Pro. A revolutionary sloped bolster design offers a smooth transition from handle to blade for the perfect feel and optimal control over our famous cutting edge. Constructed from a single piece of special formula steel, these sigmaforge knives feature remarkably sharp, flexible and corrosion resistant friodur Ice-hardened blades for the ultimate in lasting sharpness. Zwilling Pro, a modern twist on a timeless classic.