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Proton Mass Kids Hoodie Does This Proton Make My Mass Look Big?: Quite possibly the geekiest joke ever. You're guaranteed to get groans (and maybe old fruit thrown at you) when you wear this shirt. $23.99 convert currency Size:  Size Chart S (6-8) M (10-12) L (14-16) Qty:    AVAILABILITY: Product Number: 186552887 Tell a friend about this product! Product Information Fit: Standard Not too tight, not too loose. Fabric Thickness: Stay warm while lookin' casual-cool in this kid version of an adult favorite - our ash grey Hanes Pullover Hooded Sweatshirt. Deep front pocket and hood for extra protection against getting slammed by bad weather. Made of cotton/polyester blend that's thick (not bulky) for enjoying roomy comfort that allows adding layers underneath. Great durability for playing hard or hangin' out. 7.8 oz 50/50 cotton/polyester fleece Standard fit Fleece-paneled front pocket Hood without drawcord for safety