Directions for use: Spread out the vacuum storage bag and open zip fastener. Fill the bag with your textiles. Important - Overfilling with cause the bag to re-inflate. For optimum compression, only fill up to the 'STOP' line on the bag. Hold one side of the closing edge of the bag and firmly slide the zipper to seal the bag Open the cap and place the hose of the vacuum over the valve and vacuum air out. Important - Do not remove the foam valve piece inside the cap. Removing will cause bags to re-inflate. After vacuuming, close the cap quickly to create and air-tight seal. Listen for any signs of air leaking out of the cap or zipped part of the bag, and repeat step 2 if required.