While the polo shirt may have remained a smart-casual staple in men's dressing since 1929, boasting truly classic appeal in the contemporary context, this iteration by Zegna is decidedly modern. Woven from a textured blend of summer-ready silk and linen, its plunging neckline, boxy fit and elongated sleeves all turn the style from a staple to an instant statement piece. Tussar Silk/Linen/Flax. Colour: brown