Space Bag , 2 Piece Cube Combo Vac Bags (1 Large and 1 Extra Large) Compress-protect-organize Reusable Cube bags hold 25-percent more than same size flat bags Designed to stand upright for easy packing for clothing or bedding. Volume can be reduced by up to 75% to triple your storage space, depending on the items placed in the bag. Filled comforters and jackets will compress more than blankets and sweaters. Airtight, waterproof, & reusable. It protects items from moisture, mildew, insects, odors, and allergens . Vacuum-sealing drastically reduces the effects of oxidation and retards growth of mildew specifically. 25% More capacity than Flat bags.