Your child will have the power of the Ultimatrix when he goes in this Humungousaur costume! The boys alien costume has a green jumpsuit with a black stomach and screenprinted details on the chest, like spikes and the Ben 10 symbol. The jumpsuit has foam muscles on the chest and arms for a bulked up appearance, as well as a foam insert for the chest for even more muscles! There is elastic at the waist for a good fit, and it secures in the back with handy Velcro. The Humungousaur half mask is made of plastic and has holes for the eyes, nose, and mouth as well as molded details like spikes on top of the head. The mask stays put with an elastic band that goes around the head. Our Humungousaur costume is going to please any young fan of the Ben 10 cartoon series!

Size	Chest	Torso	Length	Waist
Small	26"	23"	41"	20" - 26"
Medium	28"	23 1/2"	44 1/2"	22" - 28"
Large	31"	27"	53 1/2"	23" - 28"
*Note: Measurements are of the actual item. We recommend adding 3-4 inches for movement, except for form-fitting costumes.

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