Each bag has a double-zip seal and a triple-seal turbo valve to help minimize excess air *and* you'll get a travel pump to help you compress clothes in the bags. Just place the clothes in, seal the bag, unscrew the valve cap, use the travel pump or a vacuum with a hose, and screw the valve cap back on. It's that easy!
These bags are also available in different sizes (a small fits 6-8 sweaters, medium fits 8-10 sweaters, large fits 10-12 sweaters or one pillowcase, and jumbo fits four pillow cases or one queen bedding set).
Promising review: "I live in Wisconsin and the winters get pretty cold meaning we have tons of blankets, heavy coats, and sweaters which is fine in the winter but for the rest of the year, they take up so much space. These bags have given us back so much space and keep all of your winter things clean and protected until you need them again." —Mikki
Get a six-pack of small bags from Amazon for $22.09+ (also available in medium, large, and jumbo sizes).