The term HEFTY PRODUCT can be summarized by two crossword solutions: BAGGIE (6 letters) and TRASHBAG (8 letters). BAGGIE is a small, flexible container made of paper, plastic, or foil, often used to store food or other items. TRASHBAG is a large, strong bag used for disposing of garbage. Both BAGGIE and TRASHBAG are products of the Hefty brand, which is known for its durable and reliable products.