Lems designed their vacuum bags to achieve the professional results hunters and master chefs demand. Their innovative parallel channel design prevents hidden air pockets while the sturdy 3.5 mil puncture resistant plastic makes these bags ideal for the big jobs. All bags are reusable, include a space to label the date/contents and are compatible with major vacuum sealer brands. Quart bags have an easy open tear notch. Pack a season's worth of Salmon, use for Sous Vide cooking, even keep your camera dry. These bags are up to the task - and all at a price that makes sense!