Although the company started out as a swimwear manufacturer in the Bronx in 1910. Seventeen year-old Jacob Golomb, the son of a tailor and an avid swimmer, was dissatisfied with swimsuits of the time that barely lasted a season, and began making suits that he guaranteed would last for a full year. He proudly gave them the name "EVERLAST", and although the swimsuits did not last throughout history, the name did.

In 1917, a young fighter named Jack Dempsey introduced boxing to Golomb and Everlast.