The ESEE Izula is the best selling knife ESEE Knives makes, with more than 100,000 sold by the company's own count. Locals in the Peruvian Amazon call the bullet ant the isula, the meanest insect in the jungle, and Jeff Randall and Mike Perrin built the knife to match: a 2.63 inch cutting edge on 5/32 inch stock, 6.25 inches overall, 2 ounces bare. It rides on a neck cord, in a pocket, or zip tied to a pack strap, and it goes in the kit when a full size blade would be dead weight and a folder can't take the prying.
Same blade, different handle. The original Izula is bare skeletonized steel with a lanyard hole at the pommel, built to carry at the lowest possible weight. The Izula II, also searched as the Izula 2, adds half an inch of handle for 6.75 inches overall and comes with full scales, so you get a four finger grip at 3.2 ounces. Every sheath and sheath part for the original fits the Izula II, so nothing in your carry setup has to change. Pick the original if ounces rule your kit and the Izula II if it will see real cutting. The Izula II kit packs the knife into a pocket survival setup. For a neck knife smaller still, the Candiru drops to a 2 inch blade.
A neck knife lives against skin, and sweat finds every scratch in a powder coat. That is the case for the ESEE Izula S35VN, the same 6.25 inch, 2 ounce Izula in stonewashed stainless with no coating to wear through. It is the one to pick for summer neck carry, humid climates, and kayak or saltwater kits. The coated 1095 Izulas come in black, desert tan, olive drab, dark earth, and seasonal colors like venom green and purple. Our knife steel comparison covers how S35VN holds up against other stainless steels.
The bare Izula handle is meant to be finished your way. Wrap it in paracord and you carry spare cordage on the knife itself, or bolt on the optional canvas Micarta or black G-10 Izula scales for more grip on hard tasks at under an ounce added. The molded sheath takes a clip plate for pocket or waistband carry, a MOLLE back for a vest or pack, or a cord through the eyelets for the neck. Spare Izula sheaths, MOLLE backs, and clip plates are in ESEE accessories. Popularity has a cost, too. The Izula is among the most counterfeited knives on the market, and a fake never saw ESEE's steel or heat treat, so ESEE won't stand behind it.