Elastic denim with fleece fabric (cotton 85%+spandex 15%, inner layer thin fleece, weight 280g/m 2), loose fit (suitable for children aged 3-10), adjustable waist circumference (with built-in elastic band, suitable for waist circumference of 50-70cm), foldable hems (revealing checkered lining), cartoon car embroidery printed on the back pocket (not fading), color is dark blue, size options are 110-150cm