Spring 2026 fashion is all about effortless layering — and cardigans are officially having their moment again. Not the oversized grandpa sweaters from years ago.Not the stiff office cardigans either. This season’s cardigans are soft, lightweight, slightly cropped, and incredibly easy to style. They’re the kind of pieces you throw on over a tank and instantly look put together — even if you got dressed in five minutes. If you’re building a wearable spring wardrobe, here’s why