FoodSaver® GameSaver® Bags are made of heavy-duty, multi-ply material and are proven to prevent freezer burn better than freezer bags. Bags contain specially designed channels that block oxygen and moisture to maximize air removal. Pre-cut gallon bags are convenient for quick use. For use with all FoodSaver® GameSaver® vacuum sealing systems to package and preserve game or fish out in the field. Fielded fresh. Sealed fresh.