80% More Storage Space: Our vacuum bags compress down to almost nothing, allowing 80% more storage space. They’re also really strong, being made from 80-micron plastic which means they can hold a lot without breaking. They Lock Extra Tight: With their unique double zip seal and air tight valve you can be assured that no air will get back into these vacuum pack storage bags, until you decide to open them again. They’re Also Airtight: Mole, insects and dust will be a thing of the past, as your items will be stored in an airtight and waterproof vacuum seal, keeping out dust, bacteria and other living microorganisms. They Come With a FREE Travel Pump: Our bags come with a FREE travel pump making travelling a breeze, as you can take them with you on your travels, and reuse them on your return trip.