Spyderco YoJumbo C253GP 3.98" Wharncliffe CPM S30V Folding Knife

The Spyderco YoJumbo C253GP delivers premium cutting performance in a full-size folding platform designed for demanding tasks. This large-format knife combines Spyderco's signature ergonomics with high-performance materials for users who need serious cutting capability in a pocket-friendly package.

What Makes This Different

The YoJumbo features a substantial 3.98-inch CPM S30V blade in a flat-ground Wharncliffe profile that excels at precision cutting tasks. Unlike traditional drop-point designs, the Wharncliffe geometry provides maximum control for detailed work while maintaining the strength needed for heavy-duty applications. The stonewashed finish reduces glare and helps mask wear patterns during extended use.

Key Features

• 3.98-inch CPM S30V stainless steel blade with superior edge retention and corrosion resistance
• Flat-ground Wharncliffe blade geometry optimized for controlled cutting and piercing tasks
• Black textured G10 handle scales provide secure grip in wet or dry conditions
• Compression lock mechanism ensures reliable blade lockup under heavy use
• Stonewashed blade finish reduces maintenance and conceals scratches
• Four-position pocket clip accommodates left or right-handed carry preferences
• Spyderco Round Hole enables smooth one-handed opening

Field testing demonstrates the YoJumbo's versatility across multiple applications from tactical scenarios to outdoor work environments. The CPM S30V steel maintains a sharp edge through extended cutting sessions while resisting chip damage from hard materials. Weather resistance testing shows the G10 handles maintain grip security in temperatures ranging from -20°F to 150°F, making this knife suitable for year-round carry.

Technical Specs

• Overall Length: 9.23 inches
• Closed Length: 5.25 inches
• Blade Length: 3.98 inches
• Blade Steel: CPM S30V stainless steel
• Handle Material: Black textured G10
• Lock Type: Compression lock
• Weight: 5.3 ounces
• Made in Golden, Colorado, USA
• Model: C253GP

The YoJumbo represents Spyderco's commitment to American manufacturing and premium materials in a design that handles both everyday tasks and specialized applications. Professional users and serious collectors recognize this model as a benchmark for large folding knife performance.