The New Trader Joe's Michigan Reusable 6 Gallon Mystery Bag is a medium-sized shopping bag made of durable polypropylene material. With a colorful all-over pattern and a traditional style, this foldable and waterproof bag is perfect for grocery shopping. Featuring a capacity of 6 gallons, this original piece from Trader Joe's is a practical and stylish addition to your household supplies. Made in Vietnam, this reusable shopping bag is not only eco-friendly but also adds a touch of personality to your shopping trips.