The 2017-18 Athletic Bilbao Third Shirt features a striking blue design accented with a red and white stripe pattern, an elegant look inspired by the club's historic 1903 Copa del Rey victory. Crafted by New Balance, the jersey utilizes advanced moisture-activated laser cut vents to optimize player cooling and comfort. During this challenging 2017-18 campaign, Los Leones fought through a tough domestic league season but rallied to deliver a memorable run to the UEFA Europa League Round of 16.