In one aspect, an upper for an article of footwear may include a knit element, a collar area configured to form an ankle opening, and a cuff in the collar area. The cuff may be at least partially formed by the knit element and may include a ribbed knit structure of the knit element. In another aspect, an upper for an article of footwear may include a knit element with a first area, the first area including a first side and a second side opposite the first side. The first side may be formed of at least 30% more material than the second side such that the first area is configured to curve convexly away from the first side.