What's up Anglers?! This The SHELLBACK concept is inspired by the US Navy tradition of "Crossing the Line" ceremony. This ceremony takes place when sailors crossed the equator during deployments overseas. The tradition is a rite of passage sailors and mariners, usually hazing was involved. A sailor who has never crossed the equator is referred to as a Pollywog or Slimy Wog. Those who have crossed before are called, SHELLBACKS! Chasing big fish in the ocean makes those anglers salty, weathered, tough and hardened, like a turtle's shell.