A men’s blue blazer is the cold-weather chameleon: adaptable, and ready for layering. Reach for a plush velvet option when evenings demand polish, or a patterned weave to add quiet interest under coats. Your men’s navy blazer anchors office looks with charcoal flannel trousers and Chelsea boots; meanwhile, a breezier mens light blue blazer freshens weekend denim and a roll-neck. For after-hours, a men’s dark blue blazer in slim fit cuts close, sliding under an overcoat without bulk. Balance proportions with wider-leg trousers, then introduce texture via cord, cashmere, or brushed cotton shirts. Finish with a scarf and leather gloves for warmth, and let a pocket square provide colour contrast. However you wear it, blue tailoring brings depth to winter dressing.