Ermenegildo Zegna's blazer is only lined through the sleeves so you can really see the impeccable finishing inside. Half the weight of your winter suiting, it's cut from a blend of breathable linen, smooth cotton and silk for lustre in a mélange weave that'll add depth and texture to your outfit. Note the brown suede on the undercollar and trims – it's a mark of fine Italian craftsmanship. Shown here with Loro Piana shirt, Etro trousers, Brunello Cucinelli shoes, Etro pocket square.