Peanuts Pump Up T-Shirt Sheer Sweat it out in style with this ?Pump it up? Snoopy t-shirt. Snoopy has all the strength that a puppy would need and he looks good too when working out. Pump some iron and get a good workout when you are dressed with Snoopy on your chest. Snoopy looks like he is working hard as he lifts his weights over his head. This red t-shirt is the perfect Snoopy style that will look great even with some sweat..