The Spyderco YoJumbo is a larger take on Michael Janich’s Yojimbo 2, featuring an enlarged design for better ergonomics that suits a wider range of hand sizes. This model includes a deeply hollow-ground Wharncliffe blade made from CPM SPY27 steel-a cobalt-enriched stainless steel exclusive to Spyderco, offering excellent edge retention, toughness, and corrosion resistance. It opens with Spyderco’s signature Round Hole for ambidextrous one-handed deployment.

  • Overall Length: 9.29″ (236mm)
  • Closed Length: 5.37″ (136mm)
  • Blade Length: 3.98″ (101mm)
  • Blade Thickness: .145″ (4mm)
  • Blade Steel: SPY27
  • Handle Material: G-10
  • Pocket Clip: Yes, right or left hand, tip up/tip down
  • Lock Type: Compression
  • Weight: 5.3oz
  • Country of Origin: USA