It's a brilliant cause and, here at talkSPORT EDGE, we're getting right behind it.
And we're not the only ones to join in and support this fabulous cause, England captain Harry Kane has joined the campaign, too.
Kane told us: "It's a great opportunity for everyone to come together. We all know how competitive friends and family can be with football, supporting different teams. With this cause, tackling bowel cancer, it's all to come together.
"Most people will have a football shirt, whether it's new or old. Just wearing it to work, bringing people together, hopefully it'll help people donate and bring more attention to a well-needed cause."
Hear, hear, Harry.
We took a quick whizz around talkSPORT EDGE's office to savour the great and the good of the shirts on show, and asked them: 'What are your favourite memories, the goals and celebrations in that shirt?'
Have a look in the video below…