Stormtrooper 3/4 Mask Costume Accessory This Star Wars costume accessory includes an adult size Stormtrooper 3/4 mask. This adult size 3/4 Stormtrooper mask is a lightweight vacuum formed PVC economy mask. This Stormtrooper 3/4 Mask is an officially licensed Star Wars costume accessory. Adult Star Wars Stormtrooper costumes for men are available separately.