Sup'Air is the name given to an inflatable bunker used in speedball

Speedball

Speedball is one of the two distinct game variants in the sport of paintball, the other being woodsball. It is a general term for a game in which the playing field is composed of bunkers, of the same location and number on each side of the field, that provide an equal playing field for each team...

, a variation of paintball

Paintball

Paintball is a sport in which players compete, in teams or individually, to eliminate opponents by tagging them with capsules containing water soluble dye and gelatin shell outside propelled from a device called a paintball marker . Paintballs have a non-toxic, biodegradable, water soluble...

. They are essentially tough skinned inflatables, capable of withstanding repeated paintball impacts and are normally anchored to the ground. They are manufactured in various shapes and sizes and can be employed for both indoor and outdoor use.