NWOT 4T Tuffo Muddy Buddy Suits are made with 100% Polyester Tuffo rain suit is also called the Muddy Buddy Rainsuit Waterproof Coveralls for year-round play. Great for keeping underclothes clean and dry no matter the activity. Use Muddy Buddy suits indoors for arts and crafts or outdoors for mud, rain, beach, or helping with chores. Lightweight and easily fits over clothes for ease of changing clothes.