To form a multi-purpose leisure gear usable also as a rug wrapping case by pushing one side part to the inside of the other side part and forming a double bag structure at an intermediate part for bisecting a hollow bag provided with the injection and ejection port of air whose inside is sealed.

In the state of the hollow bag 12 for which two polyvinyl chloride sheets 24 and 25 are overlapped and a peripheral edge 26 is sewn together, when the air is injected from the air injection and ejection port 11, the hollow bag 12 is expanded and is used as a swimming ring and an air pillow. Also, when one side part 14 to which the air injection and ejection port 11 is attached is pushed to the inside of the other side part 15 with the intermediate part 13 where the hook and loop fasteners 19 and 20 of the hollow bag 12 and a cord 18 are attached as a boundary, the hollow bag 12 is turned to the bag object of the double bag structure and is used as the rug wrapping case by folding a rug and putting it into a void 17 formed by pushing in one side part 14. Also, it is used as a bucket by filling the void 17 with water.