Abstract: A bag for carrying a game ball, such as, for example, a basketball. When configured to carry a basketball, the bag comprises two, substantially hemispherical members. A portion of one hemispherical member is preferably non-releasably attached to a portion of the other hemispherical member, and each hemispherical member is formed of a flexible material. The hemispherical members are also preferably provided with reinforcing ribbing. A zipper is provided for releasably fastening the two hemispherical members together so as to form a hollow, substantially spherical bag. The two hemispherical members are configured such that, when releasably fastened together, the hollow bag formed thereby is substantially the same size as a basketball. A handle is also secured adjacent said portions of the two hemispherical members which are non-releasably attached to each other for use both in placing a basketball inside the bag and in thereafter carrying the bag.