Proton Mass Yellow 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 InformationNot too tight, not too loose. Fabric Thickness: Yellow fans, color your world, or at least your body in this vibrant attention-grabbing hue. Stand out in a crowd. Our 100% Authentic Tagless T-Shirt is preshrunk, durable and guaranteed. - 6.1 oz. 100% cotton
- Standard fit
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