When crop tops and belly shirts skyrocketed to popularity in the early aughts, I was a young teen ... DIY a crop top—from your standard T-shirt to a sweater, according to four fashion stylists.

Fashion how to achieve this exact look. Outfits with a slightly daring twist are Sienna's sartorial bread and butter. From crop tops and low-rise trousers to underwear-bearing sheer dresses ...