It's time to start tucking those shirt tails and long tanks into your pants and skirts. Tucking in shirts is a trend that has been showing up since last fall, but it's now in full swing. Oxford shirts, t-shirts, tank tops and blouses can all be tucked into your skinny jeans, trousers, a-line skirts and pencil skirts. See below for some examples of different outfits with shirts tucked in. Fashion images by J.Crew.