Companies won't hire these women to drive trucks because of their gender, a new lawsuit says.

• A new lawsuit accuses one of the US's largest trucking companies of gender discrimination.
• Women were unable to start work because there weren't enough female trainers, per the suit.
• The amount of women truckers is rising, but still low — they're only about 14% of the industry.

In a new class action lawsuit, three named women allege that a trucking company either delayed their hiring processes or refused to hire them altogether because of their gender.