This is the new Ahtletic Club Bilbao 110th anniversary home shirt for the 2007/2008 season made by Athletic Sportswear, which is their own brand.
They are known as the Rojiblancos because of their red and white striped shirts and as Los leones because their stadium was built near a church called San Mamés (Saint Mammes). Equally debated, is the origin of the club colours. Although their first colours were blue and white stripes, in 1910 they switched to red and white stripes. There are three schools of thought about why this occurred.