Virgin paper extra heavy-duty Kraft grocery bags. Tough, strong and sturdy bags made to hold weighty, awkward items where a regular grocery bag just won't do. You can count on the extra strength these bags get from their 50-57 lb. basis weight, up from the 30-40 lb. basis weight of regular bags. You won't have to worry about tearing, ripping or stretching. Designed to stand up stoutly, no falling over or spilling. No need to double bag.