Blue is the color that does the most work in a man’s wardrobe and a cardigan is the layering piece most men get wrong. Too thin and it looks cheap. Too chunky and it reads as weekend only. The cardigan that earns a permanent spot is the one that works over a collared shirt, looks right with tailored trousers, and doesn’t embarrass itself with jeans either. Blue specifically is what makes this category worth building around. Navy gives you something close to a neutral. Mid blue adds a bit more personality without requiring a complete rethink of everything underneath. We’ve been focused on finding options where the yarn quality and button weight actually match what the price tag is promising. Some of these skew toward the classic end. Some are cut a little more relaxed. All of them have a reason to exist beyond filling a gap in a drawer. Blue cardigans done well are quietly one of the best things in menswear.