This set is great for any Dr. Who fans or their kids, it comes in sizes from Newborn to 4T. If you are only interested in one of the pieces please check my pther listings and note that the sweater can be made in sizes Newborn up to 4XL Adult and the pants can be made larger just please inquire. Like all of my items these can be totally customized. Both pieces are made from Acrylic Yarn, Felt, Fleece and the pants have an elastic waist band. There is great ribbing detail on the cuffs, waist and neckline and garter panels on the sleeves of the sweater. The sweater and pants are machine washable on a gentle setting in cold water and then need to be air dried.