Built for serious edge enthusiasts and everyday users who demand elite cutting performance, the Spyderco Spyderco Smock Folding Knife Burnt Orange G-10 Handle CPM REX 121 Blade takes one of Spyderco’s most innovative folders and supercharges it with one of the most extreme blade steels ever used in a production knife. Designed by renowned custom knifemaker Kevin Smock, this Sprint Run edition blends precision engineering, high-performance materials, and unmistakable style into a lightweight everyday carry that stands far above the ordinary.
At the center of this knife is a 3.39" blade crafted from CPM REX 121, a steel legendary for its incredible wear resistance and unmatched edge retention. Loaded with vanadium and cobalt, CPM REX 121 was engineered to bridge the gap between traditional high-alloy tool steels and carbide materials, resulting in a blade capable of maintaining a razor edge through punishing cutting tasks that would quickly dull lesser steels. Whether you’re breaking down heavy cardboard, slicing abrasive materials, or simply demanding long-term cutting performance, this blade is built to keep going long after others need sharpening.
The blade features a deep hollow grind paired with a striking bi-directional satin finish that highlights its aggressive cutting geometry and refined craftsmanship. Spyderco’s Trademark Round Hole works alongside the understated flipper tab to provide fast, reliable one-handed deployment with smooth action and excellent control. The Smock’s unique Button-Release Compression Lock adds another layer of innovation, combining the proven strength of Spyderco’s Compression Lock with simplified one-handed operation that feels quick, intuitive, and incredibly satisfying.
Its burnt orange peel-ply-textured G-10 handle delivers standout visual appeal while maintaining a secure, comfortable grip in hard-use conditions. Skeletonized full stainless steel liners reinforce the knife’s structure without adding unnecessary weight, helping keep the overall carry to a comfortable 3.8 ounces. At 7.92" overall with a closed length of 4.53", the Smock strikes an ideal balance between capable cutting power and streamlined everyday carry convenience.
A reversible hourglass pocket clip supports left or right-side tip-up carry, allowing users to customize the knife to their preferred setup. Every detail of this Sprint Run reflects Spyderco’s commitment to performance-driven design, premium materials, and collector-worthy exclusivity.
Made in Taiwan and produced in limited numbers, the Spyderco Smock CPM REX 121 Sprint Run delivers extraordinary edge retention, smooth operation, and unmistakable character in one elite folding knife package.
Elite performance in a bold orange handle, available at Smoky Mountain Knife Works, a Tennessee landmark and the world’s largest knife store.