2010-11 Chelsea Adidas Third Football Shorts (Kids). Official 2010-11 Chelsea 3rd football shorts available to buy online. This authentic Chelsea merchandise is available to purchase in junior sizes small boys, medium boys, large boys, XL boys. To be worn by the Blues during the 2010/11 Premiership seasons. These football shorts are black in colour and are worn with the illuminous green third shirt.The shorts come with the Adidas three stripes down the side of the shorts and the Adidas badge and Chelsea club crest on the front.