Old Navy Santa Knows What’s Up Christmas T-Shirt Green Size M Old Navy men’s green Christmas graphic tee featuring Santa in sunglasses with “Santa Knows What’s Up” design. Fun retro-style holiday shirt in a soft cotton blend. Men’s size M. 60% cotton / 40% polyester. Approx. 20” pit to pit and 25–26” length — see measurement photo. Preowned in good condition with no obvious stains, holes or major damage. #oldnavy #christmasshirt #santashirt #holidaytee #graphictee