The humble cotton crew-neck T-shirt is back. Not that it ever really went away — but, you know, there are a lot of other showier tops out there right now (loudmouth slogans, we're lookin' at you). Made from pure cotton in plain white, black or gray (a Breton stripe at the most extreme), form-fitting (but never skintight), neat with a round neck that reveals clavicles but never cleavage, and sitting neatly on the hips (never cropped), the humble crew-neck tee was never going to be an attention-grabber. But in a world of butt selfies, side-boob and bikini-line split skirts, wearing a neat little T-shirt is a quiet revolution all on its own. Wear with blue jeans and your summer sandals, maybe adding a pair of gold hoops, and see if you don't suddenly come over all perfect-looking. 

Picture: Actress Jane Birkin, photographed in 1974, knew how to give good T-shirt