Because the Kardashians have taken this style (already a favourite of theirs) in this particular colour and clasped it to their collective bosom.
Always fans of the over coordinated look, the Smurf-coloured tote was first spotted in abundance last week at a Dallas Mavericks game.
Go Mavericks! Kris Jenner flew the flag for Lamar's team by carrying this bag in his team colours in Miami today, either that or she just liked the blue
Kim, 31 , stuck to her black Hermes for the game, perhaps unwilling to extend the cheerleading into the realm of accessories.
But the gung-ho matriarch of the clan is taking her support of her son-in-law a step further by making the luxury item a regular feature.
Flash of colour: The Hermes Birkin brightened up the Kardashian matriarch's otherwise black outfit
Team colours: The family with the bags at the Mavericks vs LA Clippers game on January 18
Kris was chipper despite the tumultuous time her family have been having.
There was even a suggestion that her real father could be O.J Simpson, who with his late wife Nicole, was a close friend of the family.
Standing out: Bright colours are a feature again this year
Expensive: This bag will set you back around $10,000
But Jenner has much to smile about, she must be proud of Kim for securing her first proper job as a co-anchor on Live with Kelly yesterday.
She can also look forward to the birth of her second grandchild, or grandchildren, as Kourtney, 32 , is expecting and there have been rumours that it could be twins.
True blue: Lamar in the Mavericks kit as the team took on the New Orleans Hornets on January 21