The costume states that it would fit a 8-10 year old child. It is enormous. I am a size 10 lady and can fit into this garment with ease. The quality of the fabric and stitching is awful, so it would fall apart if used by a child, and it just looks cheap which does not reflect the retail price. The mask and accessories are hard, cheap plastic, and would be uncomfortable to wear for a long period. Very disappointing quality.