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Questions & Answers
Are you an authorized Spyderco dealer? Will the Spyderco warranty be in place with purchase from Optics Planet? Expert Answer

Yes, we are an authorized dealer and this will be covered under Spyderco's warranty.

by Nick B., Gear Expert, October 16, 2021
Customer Reviews
Helpful Positive Review
OK guys, I guess I'm one of the first to get a Yojumbo thanks to Optics Planet. BTW, their service was great. The knife is virtually flawless. I say "virtually" because the only disappointment I have is that it is not hair shaving sharp out of the...
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7/8 found this helpful
Most Recent Reviews
Absolute Tank of a knife by Bk, Verified Owner, December 5, 2025
I’ve wanted one of these for years. Purchased it through Optics Planet and was pleased with the entire transaction. Best part is MADE IN AMERICA
Most Recent Reviews
Sypderco YoJumbo by Dieselwrench, Verified Owner, October 22, 2024
Beautifully made knife. Great grip to the scales. The scales won't tear your hands up, but it will not slide out of your hands. Razor sharp or of the box, as usual for Spyderco. The blade flips open with minimal effort and is easily closed with the t...
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Most Recent Reviews
Spyderco Yojumbo by Nate, November 18, 2023
I had wanted this knife for a long time and finally bought it from OpticsPlanet as they were the only ones who weren't sold out and sell it at a lower price than other retailers. I have another wharncliffe knife similar to the Yojumbo but comparing t...
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Most Recent Reviews
Sypderco Yojumbo is awesome! by John, September 14, 2021
This thing is pretty sweet. Big! It has super grippy scales and a great menacing look. I love it! I'm very happy I picked one up. The profile is large so of course comfort in the pocket may be a consideration to some but I don't mind it.
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Blade Length:
4 in
Blade Material:
CPM S30V
Serrated:
Plain
Blade Shape:
Wharncliffe
Handle Material:
G10
Blade Finish:
Satin
Sheath Material:
No Sheath
Handle Color:
Coarse Black

Code: 9Q-KN-YJK1-C253GP

MPN: C253GP

UPC: 716104014484

List: $298.00Save 25%
$223.50

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OP Bucks$9.83

Product Info for Spyderco YoJumbo 4in Folding Knife

Since its introduction in 2011, Michael Janichs Yojimbo 2 design has earned a respected place in Spydercos product line and legions of devoted followers worldwide. The YoJumbo builds on that success, scaling the design up by over 20 percent and refining its ergonomics to accommodate a wider range of hand sizes. Its formidable four-inch (102mm) Wharncliffe blade is hollow ground for superior edge geometry and features a fully accessible Trademark Round Hole for swift, ambidextrous, one-handed opening. The handles open-backed construction and nested, skeletonized stainless steel liners keep weight to a minimum, while its coarse-textured G-10 scales promote a positive, non-slip grip. A high-strength Compression Lock and four-position pocket clip complete the package, making the YoJumbo a truly formidable cutting tool optimized for personal-defense carry.image

WARNING: California`s Proposition 65

Specifications for Spyderco YoJumbo 4in Folding Knife:

Manufacturer: Spyderco
Blade Length: 4 in
Closed Length: 5.37 in
Blade Material: CPM S30V
Designer: Michael Janich
Serrated: Plain
Knife Application: Everyday Carry
Overall Length: 9.26 in
Blade Shape: Wharncliffe
Handle Material: G10
Blade Finish: Satin
Blade Thickness: 0.145 in
Lock Type: Compression Lock
Blade Grind: Hollow
Sheath Material: No Sheath
Handle Color: Coarse Black
Weight: 5.1 oz

Package Contents:

  • Spyderco YoJumbo 4in Folding Knife

Spyderco YoJumbo 4in Folding Knife Orderable Models

List of Orderable Models

  • Spyderco YoJumbo Folding Knife, 4in, CPM S30V Steel, Wharncliffe Blade, G10 Handle, C253GP , MPN: C253GP , UPC: 716104014484 , Code: 9Q-KN-YJK1-C253GP
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