Halo Infinite Master Chief Helmet Resin Cosplay Costume Accessory for Halloween. 1 : 1 scale design. Our Master Chief helmet is inspired by the Halo game with highly simulated colors. Head circumference of about 23.6 inches, suitable for most adults and teens. Our Master Chief Helmet is made of durable resin, light weight and comfortable to wear. Fine workmanship, the surface of the helmet has a delicate texture. Perfect for carnival, Halloween, Christmas.. Read More