Blacks Leisure, the large British outdoor retail chain acquired by JD Sports Fashion earlier this year, has signed a contract to become the U.K. National Trust's first national outdoor retail partner. National Trust's rangers will be invited to test and review the clothing, footwear and outdoor gear provided by Blacks while they work in the parks and other coast and countryside areas managed by the Trust. The initial partnership will run until Jan 31, 2013. National Trust supporters will benefit from an introductory 10 percent discount for all orders over £50 (€62.1-$80.4), both online and in Blacks stores.