Audrey Hepburn's famous pose is following the etiquette rule for gloves: that a long glove can only be worn with a short sleeve. The shorter the sleeve, the longer the glove. There are 3 options: matinée (or to the wrist), to be worn with long sleeves. Elbow gloves, to be worn with a short sleeved outfit. And opera, or full length, to be only worn with a sleeveless gown.