Old Guys Rule - T-Shirt - "Refuse To Grow Up" - Great gift for any Old Guy in your life like your Husband, Father, or Grandfather. Refuse To Grow Up "I Might Get Older But I Refuse To Grow Up". Front: mini design on left chest. Back: large design. 50/50 Cotton/Polyester blend. Runs true to size Machine wash warm; tumble dry medium Do not iron design.