“Esto Perpetua,” or “let it be forever,” is the state motto of Idaho—and it’s where this heavy duty EDC knife gets its name. Designed by Idaho-based knifemaker TJ Schwarz and made by Millit Knives, this American-made folder is built to take on anything. If the locking mechanism looks familiar, it should; developed by McHenry and Williams, this style of lock has been a key component of Benchmade knives over the last two decades. That’s because it’s widely recognized as the strongest and safest locking mechanism there is, which is crucial to folders as the lock is the most common point of failure. The blade is made from premium Nitro-V: a nitrogen-enriched steel with excellent edge retention, high hardness, and extreme corrosion resistance. For a secure grip, there’s a smooth G-10 handle in stealthy gray and a removable tip-up clip for righties and lefties.