Hover Boots: Ocarina of Time

According to the Zeldapedia:

Their main purpose is to allow Link to walk on water or thin air for a few seconds and thereby cross otherwise impassable pitfalls. This useful, and sometimes necessary ability, is offset by the fact that the boots maintain rather poor traction while on solid ground. […]

Since the Hover Boots only work a brief moment, their practical use is rather limited. However, they feature several other, less obvious, benefits that are apparent from time to time, the most notable of which is the fact that Link, while hovering, can easily change direction in mid-air, an ability that is much more limited while simply jumping. The boots also reduce Link's weight, which keeps him from sinking in quicksand, weight-sensitive platforms and, in rare cases, allows him to foil certain pressure-sensitive traps.

(bold emphasis mine)