What do we mean by a "waterproof sets for children"? To us this means ether; a waterproof jacket and a pair of waterproof trousers or a jacket and a pair of dungarees. For head toe waterproof coverage an waterproof set is a great investment to keep your kids dry all day long. Forest school and nurseries typically love the jacket and dungarees sets for young children as they are very versatile a can provide the right level of clothing for everything from a slightly damp day outside to a torrential down pour. Four older children the jacket and trousers sets are a great option.