The Spyderco Stretch started as a pet-project lockback knife design. Spyderco’s owner and chief designer made it for his personal use, incorporating features he wanted. He wanted high performance blade steel with edge retention super-powers for outdoor cutting: things like wood, rope and anything encountered in the wild. It had to work equally well indoors on cardboard, mail and fingernails. He sized it so it wouldn’t scare non–knife people and made it look slick on the off chance he’d someday have to wear a suit.