More flexible and portable than glove boxes, these glove bags are temporary enclosures that protect you while you work with hazardous or unknown material and isolate the material from outside air and moisture. They come with built-in gloves to shield your hands and prevent hand oils from getting inside. All have one or two zipper openings for depositing material and equipment. They collapse for storage and are sturdy enough to be used again, but replace them if they become contaminated.