Yeah, it’s history / a point of pride. The red sash is the single enduring symbol from when the club started in the 1870s.
Our players wore whatever black / navy jumpers they could get their hands on (like all clubs), and from a year or so after the club was formed there’s documentation that they wore a red sash to differentiate us.
Nearly 150 years now and it’s the one thing we’ve always worn. It’s almost always been on black, probably some on navy blue in the very early days, and now later they’ve bent and put it on silver or red, but it’s still a red sash.
It’s varied from extremely thin to ridiculously thick, been straight, been droopy, had a seatbelt logo, been made up of poppies, or wheat, or indigenous designs... but it’s always been there.
Some of the more creative Essendon clash designs on here look good... but unless it has a red sash from shoulder to hip, it’ll basically never happen.
The uniform for the AFL Premiership season will consist of a black jumper or guernsey with a red sash, red and black socks and white or black shorts. Such uniform will be worn at all matches subject to the rules and directions of the AFL.
The second sentence basically says we have to wear what the AFL tells us. Such as when they cracked it over the fat sash and told us to wear another jumper.
It also interestingly refers to the “AFL premierships season”, so theoretically they could wear a different pre season jumper without changing the constitution. Not that they’d probably bother, it’s a pride thing now.