Our size according the height of your children. If your children are fat, please choose bigger size. S: fit for kids tall 95-110cm kids(about 2-4Year) bust:53-58 waist:50-55 Hips:56-61 M: fit for kids tall 110-120cm kids(about 4-6Year) bust:59-65 waist:56-60 Hips: 62-68 L: fit for kids tall 120-130cm kids(about 7-9Year) bust:66-71 waist:61-64 Hips:69-74 XL: fit for kids tall 130-140cm kids(about 10-12Year) bust:72-78 waist:65-68 Hips:75-81 * Package includes : Jumpsuit + hat + belt + two Darts + gloves + 4 red ropes +2 short plastic swords (not include the weapon on the back of the model)