Tank by ASOS 4505, The perfect kit for the gym or a lazy Sunday, You decide, Round neck, Scoop back, Regular fit - true to size. The new activewear range from ASOS offers fashion-forward pieces whatever your workout. Whether you're running, raving or training, ASOS 4505 has the very best performance kit, designed to keep you cool and reflect the most stylish trends, ensuring your playtime has personality. This is our movement for movement. Join in.