Combat boot manufacturer Wellco Enterprises Inc has posted a rise in half-yearly net income to $967,000, up from $230,000 in the same period a year earlier.

The North Carolina-based company, whose half-yearly fiscal period ended on January 3, also reported revenue of $20 million for the six months, up from $10.5m year-on-year.

Wellco significantly increased its rate of boot production in the six-month period after receiving a contract from the Defence Supply Centre in Philadelphia to manufacture desert boots for US Armed Forces in Iraq.