Halo Master Chief Collector"s Adult Halloween Costume: * Includes quilted, quality jumpsuit with EVA armor, 2-piece deluxe helmet, gloves and boot tops * Helmet has lights on sides and these take 4 AAA batteries * 100 percent PVC * Wipe clean only * Adult standard fits men"s sizes up to size 44 Check out all of the Halloween costumes at Walmart.com. You can find Halloween costumes for kids, adults, couples, teens, babies and even pets.