Proton Mass Green T-Shirt 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. Product Information Not too tight, not too loose. Fabric Thickness: Go green! Freshen up your wardrobe with attention-grabbing green. Not only is this 100% Hanes Authentic T preshrunk and durable, it's the most comfortable t-shirt ever. Stand out in a crowd; remember, green is the new black. - 6.1 oz. 100% cotton
- Standard fit
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