Using this down storage sack is a breeze. First, unzip or open the drawstring closure. Then, gently place your sleeping bag or quilt inside the sack. Make sure it's neatly arranged to fully utilize the large volume. When you're done, pull the drawstring tight to close it up. As for maintenance, since it's made of 100% cotton, you can machine - wash it on a gentle cycle with mild detergent. Hang it to dry to keep its shape. Keep in mind, always store your sleeping bag or quilt in this sack when it's not in use. This will protect it from dust and help maintain its loft. With the lifetime warranty, you don't have to worry about any manufacturing defects. Enjoy your worry - free adventures with your well - protected gear!