One woman has finally uncovered the answer and shared it with her fellow fashionistas in a post to her Twitter account and it turns out the excess straps are one of the most practical clothing features around.
“Taken me 18 years to find out that the weird shoulder buttons on jackets is [sic] to hold your bag in place so it doesn’t fall off who knew,” the surprised shopper said.
It seems the shopper wasn’t the only one in the dark as the tweet has since gone viral, garnering more than 50,000 retweets and over 130,000 likes.
“That makes so much sense why did we never get that??” one commenter stated.
Another added: “This is actually life changing info!!!”
While a third said: “That has blown my mind.”