Authentic Athletic Club Bilbao home football jersey by Castore, featuring the club’s iconic vertical red-and-white striped design. The shirt is crafted from lightweight, breathable performance fabric with moisture-wicking technology for optimal comfort during matches or casual wear. It includes a black V-neck collar with white trim, black sleeve cuffs with white piping, and the official Athletic Club Bilbao crest on the left chest. The front prominently displays the sponsor 'Kutxabank' in bold black lettering with white outline, while the Castore logo (winged 'V' emblem) appears on the right chest. Designed for both on-pitch performance and streetwear appeal, this jersey combines heritage aesthetics with modern athletic tailoring. Ideal for fans, collectors, or sporty streetwear enthusiasts seeking authentic club apparel. Suitable for warm-weather training, matchdays, or everyday casual styling with jeans or shorts. The slim-fit cut ensures a contemporary silhouette without sacrificing mobility.