Smarter than a t-shirt but not quite as smart a shirt, this style can look equally good with a suit or with jeans. A Polo is as smart or casual as you make it.

History 

Tennis players were forced to play in stiff shirts rolled up at the sleeves, trousers and ties that was until René Lacoste came along. But Lacoste, a champion player, pushed the sport forward with the first polo shirt, which he debuted at the 1926 U.S. Open. The design was optimised for play: the short sleeves wouldn't unroll; the piqué cotton was breathable; a soft, unrestrictive collar would allow the player to move comfortably around the court.

How to wear yours

A polo shirt works with so many of your clothes—from your favourite pair of chino shorts to denim and minimal trainers. Personally though I like to see a polo as part of a suit, especially in summer, it offers something different.