A paraglider is a free-flying, foot-launched glider aircraft used in the recreational and competitive flying sport of paragliding. The pilot of a paraglider sits in a harness suspended below a fabric wing, whose shape is formed by its suspension lines and the pressure of air entering vents in the front of the wing.
Despite not having an engine, paraglider flights can last many hours and cover many hundreds of kilometres, though flights of 1-2 hours and covering a few tens of kilometres are more the norm. By skilful exploitation of sources of lift the pilot may gain height, often climbing to a few kilometres over the surrounding countryside.
Paragliders are unique among aircraft in being easily portable. The complete equipment packs into a rucksack and can be carried on the pilot's back, in a car or on public transport. In comparison with other air sports this substantially simplifies travel to a suitable take off spot, selection of a landing place and return travel.
Source: Wikipedia, "Paragliding", available under the CC-BY-SA License.