Product DescriptionThe Spyderco YoJumbo is a large-format folding knife designed by Michael Janich, building on the acclaimed Yojimbo 2 platform with a profile scaled up by more than 20 percent and refined ergonomics for a broader range of hand sizes. This version features a 3.98-inch plain edge Wharncliffe blade crafted from Spyderco&';s proprietary CPM SPY27 stainless steel, a cobalt-enriched particle metallurgy steel known for its strong balance of toughness, edge retention, and corrosion resistance. The blade is deeply hollow ground for efficient cutting performance and includes Spyderco&';s Trademark Round Hole for fast, fully ambidextrous one-handed opening.The open-backed handle combines skeletonized stainless steel liners with cobalt blue peel-ply-textured G-10 scales for a durable, lightweight grip. A high-strength Compression Lock delivers secure lockup during use, while the four-position pocket clip allows customizable tip-up or tip-down carry on either side. With its bold design, premium steel, and practical carry options, the YoJumbo is an excellent choice for users seeking a high-performance tactical and everyday carry folding knife.Product Highlights 3.98-inch plain edge Wharncliffe blade offers strong tip control and precise cutting performance. Exclusive CPM SPY27 blade steel provides an excellent mix of edge retention, toughness, and corrosion resistance. Deep hollow grind enhances slicing ability for everyday tasks and tactical applications. Cobalt blue G-10 handle scales with skeletonized stainless steel liners deliver strength with reduced weight. Compression Lock, ambidextrous round hole opener, and four-position pocket clip support secure and versatile carry. Specs Product Type: Folding Knife Designer: Michael Janich Blade Length: 3.98 in Blade Edge: Plain Blade Style: Wharncliffe Blade Grind: Hollow Grind Blade Steel: CPM SPY27 stainless steel Blade Finish: Satin Opening Method: Trademark Round Hole, one-hand ambidextrous opening Lock Type: Compression Lock Handle Material: G-10 Handle Color: Cobalt Blue Liners: Skeletonized stainless steel Pocket Clip: Four-position, tip-up or tip-down, left or right carry Weight: 5.29 oz UPC: 716104018581 MPN: C253GPCBL Brand: Spyderco Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.