"Sourdough" was nickname for an experienced miner during the California Gold Rush. Miners made bread from a unique yeast that was sour, durable, hearty, and tasty. The bread was so synonymous with miners that experienced miners earned the nickname "Sourdough!"

This New Era 9Fifty Snapback features a 3D embroidered white and gold Westside Love logo on a red crown, wheat visor, gold "glyph" logo on the back, gold New Era logo on the left side, and gray undervisor.

The 9Fifty and 59Fifty shape has been the standard of baseball hats since 1954, and New Era is the official cap of Major League Baseball.