I'm in my 20s, my mom is in her 50s, and here's the one thing we both keep inside our Birkins

For thirty years she's lined every bag she carries, usually with felt organizers that left pressure marks or pretty linen ones that protected nothing. Then she handed me a 7RP L'Insert, and the argument was over.

L'Insert is made from Alcantara, the same material trusted in the interiors of Porsche, Lamborghini and Ferrari, chosen because it's soft enough to sit against Hermès leather every day without leaving a mark. It's custom-cut for each model and size: a Birkin 25 insert is not a Birkin 30 scaled down, and a Sellier Kelly is built differently than a Retourné. Each one is hand-assembled over roughly four hours in an atelier in the South of France, made to order, and shipped within days.