This is a shirt featuring artwork and a logo design by Jon Amdall. The T-Rex is from a post with several dinosaur sketches, so check that out if you want to also see a triceratops and stegosaurus.
This particular shirt is the least expensive option I could find; it’s your basic heavyweight Gildan Unisex 64000.
• 100% ring-spun cotton
• Sport Grey is 90% ring-spun cotton, 10% polyester
• Dark Heather is 65% polyester, 35% cotton
• 4.5 oz/y² (153 g/m²)
• Shoulder-to-shoulder taping
• Quarter-turned to avoid crease down the center