Sprint Runs are limited-edition production runs of knives not found in Spyderco’s regular product line. Some are special versions of current models, while others are uniquely different expressions of classic, discontinued designs. No matter what form they take, every Sprint Run is a truly distinctive, one-time-only event. Once that knife is sold out, it will not be produced again in that exact form. That makes Spyderco Sprint Runs some of the most desirable and collectible knives we make.