The Spyderco Endura 4 with Emerson Opening has the blade-opening feature made popular and patented by Ernest Emerson of Emerson Knivesalong with a Fiberglass Reinforced Nylon (FRN) handle with molded texturing for improved grip and ergonomics. The Endura 4 has a VG-10 blade, this model has a ComboEdge blade which is part PlainEdge and part SypderEdge. Along the blade's spine is slip resistant jimping. The clip is upgraded to a four-way adjustable tip-up, tip-down, left or right handed clip.
Blade Edge | Plain |
Handle Color | Black |
| Length Overall | 8.812" |
| Blade Length | 3.812" |
| Closed Length | 5" |
Cutting Edge | 3.438" |
| Blade Thickness | .125" |
Weight | 5.625oz |
| Blade Steel | VG-10 |
Handle Material | FRN |