Charlie Crow Bert The Chimney Sweep Costume for Kids 6-12 Years 100% polyester Bert chimney sweep costume for boys. Three sizes to fit children aged 6-8, 8-10 and 10-12 Years. Costume includes white shirt, black waistcoat trousers and hat. Machine washable. 100% Polyester. Conforms to European & North American safety regulations. As a precaution keep away from fire. For more information view the product details below.