The Mariner was the second model introduced by Spyderco. It was introduced in 1982 and remained in production until 1998. As its name implies, the Mariner was intended for those who work or play in a marine environment. It's relatively blunt pointed Sheepfoot blade is less likely to unintentionally puncture something while being used on a pitching, rolling vessel or if dropped. The Mariner was the first Spyderco to feature a serrated edge.