"BB550" is a reprint of the basketball shoes for athletes released in the 90s. In the classic 550 series, the atmos custom-made BB550ATM “Back in Black” is now available in a monotone color that is easy to match with a wide range of styles. Around 2015, street fashion was dominated by "monochrome" clothing, where people wore black or white from head to toe. It was even introduced as "black coordination" by world-famous rappers and fashion magazines, but recently, with the Y2K fashion trend and interest in diversity, fashion styles that add color have become more prominent. Things started to change. In order to bring back the black trend, atmos proposes this product as "Back in Black."