A cropped sweater or sweatshirt in a fine gauge, chunky knit, mixed media silk blend, or sweatshirt fabric is what I call a cheeky pullover. The fit is fluid or oversized, and in most cases has a welt or high-low hemline. I particularly like the styles with raglan sleeves. 

In the online pictures many of these pullovers are matched with body-con skinnies and jeggings, which I don’t think is the most attractive way to wear them because of their short length. To my eye, short cheeky pullovers look best with less tight bottoms like tulip and full skirts, fluid or slouchy trousers, roomy bootcuts and straight legs, boyfriend jeans, or wide leg jeans. Faux tuck the top with a belt if desired. That said, I do like a cheeky pullover worn over a tight pencil skirt because skirts and shorter tops are generally a great pairing.

Halogen Leather & Cashmere SweaterTheyskens' Theory Kuno Yuno Sweater