Pavlov's Cat Shirt Funny Psychology T-ShirtUnlike Pavlov's Dog, Pavlov's Cat Is No Drooling Fool For A Bell. He Awaits The Sound Of The Can Opener! A Gift For Your Favorite Science Geek, Cat Lover, Psychology Major, Or Backyard Behaviorist. Lightweight, Classic Fit, Double Needle Sleeve And Bottom Hem Solid Colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine Wash Cold With Like Colors, Dry Low Heat