Make sure to grab your sandwich with If You Care Sandwich Bags. They are made from unbleached pulp extracted from Scandinavian spruce trees in Sweden. Greaseproof which provides natural barrier for fats and oils to seep through. Great for strong mayonnaise sandwiches. Not petroleum-based. Wax-free and chlorine-free. Plus they are eco-friendly. Wonderfully perfect to store cookies, snacks, nuts and packed sandwiches.