THE PHYSICS IS THEORETICAL BUT THE FUN IS REAL SLEEVE SHIRT-mt

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; funny shirt, lazy shirt, fun shirt, good shirt, physics shirt, theoretical shirt, therapist shirt, awesome shirt, problem shirt, animal shirt, couple shirt, people shirt, family shirt, dad shirt, mom shirt, kid shirt, parent shirt, father shirt, mother; Lightweight, Classic fit, Double-needle sleeve and bottom hem