In 1921, Lee introduced the “Railroad Jacket”. It was designed specifically for railroad workers and named the "Loco Jacket" as its’ detailed features were actually tested by the railroad workers themselves.
Lee was famous for their railroad jackets, which could be identified by the house silhouette on the jacket tab, also noting the description “Jelt Denim and Sanforized”.
Around the end of the 1920s, Lee introduced the first denim jacket with a zipper closure known as the 91. This workwear line included the Lee 91 and Lee 191 series jacket.
Lee continued to focus on workwear, specifically designing for “worker trades”. In addition to the earlier described railroad jacket, in 1927 Lee introduced the “Logger dungarees featuring wider hips, watch pockets and suspender buttons
