Assuming they want to survive the landing and jump all over again and one isn't a bird, bat or maybe a flying squirrel, just about every skydiver have to use a parachute. Most generally jump away from an aeroplane usually both in flight (rather than just sitting on the bottom) https://ok73159.dekaronwiki.com/1827788/parachute_buy_things_to_know_before_you_buy