With a brand name inspired by the former world’s No. 1 Swedish tennis player, Bjorn Borg have been producing sports apparel since 1984, specialising in sports underwear. My partner came home from a particularly bouncy HIIT class rather red-faced, telling me that he never realised his junk jumped around as much as it did until he ended up in front of the gyms mirror, to which I simply rolled my eyes and said, “why do you think girls were sports bras?”