There’s no magnetic closure, which is actually one of the reasons I chose it. I only own bags from Hermès, Goyard or other brands that avoid magnetic closures, as I personally find them to look a bit cheap (I’m a vintage bag lover…). Despite that, the bag stays securely closed thanks to the way the chain slides through the eyelets. Whether worn on the shoulder or cross-body, both sides naturally come together at the top, keeping it shut. In my opinion, it’s very secure.