When it comes to weekend dressing, throwing on a long-sleeved polo shirt is an easy route to off-duty style. This Billy Reid version comes in a dark blue shade with contrasting placket, and has been cut from soft cotton-jersey fabric for a completely relaxed feel. Throw yours on over chinos and leather sneakers for an easy-going attitude. Shown here with a J.Crew blazer, J Brand jeans, Timex x J.Crew watch and Mark McNairy shoes.

• Dark blue long-sleeved cotton-jersey polo shirt
• Black undercollar and buttoned placket, buttoned cuffs
• 100% cotton
• Machine wash or dry clean