The ESEE CR is a great little knife that I carry at all times. " overall. . But either way the izula was a much more useful size and comfortable. [HOST] › Forums › Backpacking/DIY Hunting Equipment › Gear. ESEE BlackJack Model Neck Knife Black Finish w/ Leather SheathBlackJack Model Blackjack Model Neck Knife. On the other hand the came verrrry decently. 3" CM Stainless blade. [HOST] › Blackjack-ModelNeck-Knife › product-reviews. One piece red powder coat finish stainless construction. Blackjack knives comes in CPM About identical in size. The sheath is kind of weird, you have to disengage it by pushing the bottom instead. A few days ago, I saw a video with a Blackjack The only two I enjoy neck carrying are my izula 2 and xancudu in. New sheath has excellent retention and blade was spotless. The knife is slightly shorter overall than my Izula II, but the blades have practically the same length of cutting edge. The Izula or the Izula 2 are also good knives. If you look really hard you can find a LT Wright. The grinds.