We love a Johnny collar — a polo with no buttons — for it's dress-up-or-down versatility. Sub it in for your t-shirt, dress it up with slinky dress trousers something sparkly on the ears — you get it. This one's made with our favorite, 4-ply high-twist, cool-to-the-touch cotton knit (hence the name) with a fit that's slim and sexy but never too tight.