The Kizer Vanguard Zipslip is a slipjoint pocket knife, designed by Michael Vagnino. The fact that it is a slipjoint means that the pocket knife doesn't have a real lock. Only a slight resistance that prevents the knife from immediately closing. As such you can legally carry this pocket knife in many places in Europe. You open it with one hand with the practical thumb hole. You immediately notice that the slipjoint is enhanced with a practical half-stop. This means that when closing the knife you have enough time to make sure your fingers are nowhere near the razor-sharp blade.