This cute shirt features a clueless cat saying "I know what I'm doing" — Totally truthful! Not at all just pretending! Fake it til you make it, right? The fabric is 100% cotton and it is already pre-shrunk so that it will not shrink in the wash. The material is soft and comfortable to wear. Please check the last image for sizing! These shirts are unisex and the current sizes offered are S-5XL. All measurements are in INCHES. Color of the actual product may vary slightly from it how looks on-screen. This shirt is a bright teal color in person! Please note that apparel items cannot be returned or exchanged.