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Stephane Cardinale - Corbis/Corbis via Getty Image
OK, so a thigh-high slit only works if you're Bella Hadid attending a red carpet event. However, no matter the height, an off-center peek is quite possibly the most universal cut out there. Whether you're going the pencil skirt route, or the more relaxed weekend-uniform route, the side slit will give your look an undeniably classy feel.